74087979690 has 32 divisors (see below), whose sum is σ = 179809035840. Its totient is φ = 19534807424.

The previous prime is 74087979689. The next prime is 74087979703. The reversal of 74087979690 is 9697978047.

It is a super-2 number, since 2×74087979690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13871484 + ... + 13876823.

It is an arithmetic number, because the mean of its divisors is an integer number (5619032370).

Almost surely, 2^74087979690 is an apocalyptic number.

74087979690 is an abundant number, since it is smaller than the sum of its proper divisors (105721056150).

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

74087979690 is a wasteful number, since it uses less digits than its factorization.

74087979690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27748406.

The product of its (nonzero) digits is 48009024, while the sum is 66.

The spelling of 74087979690 in words is "seventy-four billion, eighty-seven million, nine hundred seventy-nine thousand, six hundred ninety".