74346687390 has 64 divisors (see below), whose sum is σ = 182630131200. Its totient is φ = 19359575424.

The previous prime is 74346687379. The next prime is 74346687407. The reversal of 74346687390 is 9378664347.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74346687390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8611596 + ... + 8620224.

It is an arithmetic number, because the mean of its divisors is an integer number (2853595800).

Almost surely, 2^74346687390 is an apocalyptic number.

74346687390 is an abundant number, since it is smaller than the sum of its proper divisors (108283443810).

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

74346687390 is a wasteful number, since it uses less digits than its factorization.

74346687390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15361.

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 74346687390 in words is "seventy-four billion, three hundred forty-six million, six hundred eighty-seven thousand, three hundred ninety".