7861573960 has 64 divisors (see below), whose sum is σ = 18294451200. Its totient is φ = 3037305600.

The previous prime is 7861573933. The next prime is 7861573961. The reversal of 7861573960 is 693751687.

It is a junction number, because it is equal to n+sod(n) for n = 7861573898 and 7861573907.

It is not an unprimeable number, because it can be changed into a prime (7861573961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664981 + ... + 676699.

It is an arithmetic number, because the mean of its divisors is an integer number (285850800).

Almost surely, 2^7861573960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7861573960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9147225600).

7861573960 is an abundant number, since it is smaller than the sum of its proper divisors (10432877240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7861573960 is a wasteful number, since it uses less digits than its factorization.

7861573960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302 (or 12298 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 7861573960 is about 88665.5173108464. The cubic root of 7861573960 is about 1988.3973156901.

The spelling of 7861573960 in words is "seven billion, eight hundred sixty-one million, five hundred seventy-three thousand, nine hundred sixty".