74838366660 has 48 divisors (see below), whose sum is σ = 216307026432. Its totient is φ = 19313126400.

The previous prime is 74838366653. The next prime is 74838366689. The reversal of 74838366660 is 6666383847.

It is a super-2 number, since 2×74838366660² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74838366660.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20115981 + ... + 20119700.

It is an arithmetic number, because the mean of its divisors is an integer number (4506396384).

Almost surely, 2^74838366660 is an apocalyptic number.

It is an amenable number.

74838366660 is an abundant number, since it is smaller than the sum of its proper divisors (141468659772).

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

74838366660 is a wasteful number, since it uses less digits than its factorization.

74838366660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40235724 (or 40235722 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 57.

The spelling of 74838366660 in words is "seventy-four billion, eight hundred thirty-eight million, three hundred sixty-six thousand, six hundred sixty".