888402387601 has 9 divisors (see below), whose sum is σ = 892332160059. Its totient is φ = 884489858400.

The previous prime is 888402387569. The next prime is 888402387623. The reversal of 888402387601 is 106783204888.

The square root of 888402387601 is 942551.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 668141125201 + 220261262400 = 817399^2 + 469320^2 .

It is not a de Polignac number, because 888402387601 - 2⁵ = 888402387569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (888402387101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 227152836 + ... + 227156746.

Almost surely, 2^888402387601 is an apocalyptic number.

888402387601 is the 942551-st square number.

888402387601 is the 471276-th centered octagonal number.

It is an amenable number.

888402387601 is a deficient number, since it is larger than the sum of its proper divisors (3929772458).

888402387601 is an frugal number, since it uses more digits than its factorization.

888402387601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

It can be divided in two parts, 888402 and 387601, that added together give a triangular number (1276003 = T₁₅₉₇).

The spelling of 888402387601 in words is "eight hundred eighty-eight billion, four hundred two million, three hundred eighty-seven thousand, six hundred one".