74398921092 has 24 divisors (see below), whose sum is σ = 192886092000. Its totient is φ = 24799640328.

The previous prime is 74398921067. The next prime is 74398921109. The reversal of 74398921092 is 29012989347.

74398921092 is a `hidden beast` number, since 74 + 398 + 92 + 10 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344439342 + ... + 344439557.

It is an arithmetic number, because the mean of its divisors is an integer number (8036920500).

Almost surely, 2^74398921092 is an apocalyptic number.

It is an amenable number.

74398921092 is an abundant number, since it is smaller than the sum of its proper divisors (118487170908).

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

74398921092 is a wasteful number, since it uses less digits than its factorization.

74398921092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688878912 (or 688878904 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 74398921092 in words is "seventy-four billion, three hundred ninety-eight million, nine hundred twenty-one thousand, ninety-two".