74074599690 has 128 divisors (see below), whose sum is σ = 218892602880. Its totient is φ = 15622668288.

The previous prime is 74074599667. The next prime is 74074599707. The reversal of 74074599690 is 9699547047.

It is a super-2 number, since 2×74074599690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10613482 + ... + 10620458.

It is an arithmetic number, because the mean of its divisors is an integer number (1710098460).

Almost surely, 2^74074599690 is an apocalyptic number.

74074599690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74074599690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109446301440).

74074599690 is an abundant number, since it is smaller than the sum of its proper divisors (144818003190).

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

74074599690 is a wasteful number, since it uses less digits than its factorization.

74074599690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10896.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 74074599690 in words is "seventy-four billion, seventy-four million, five hundred ninety-nine thousand, six hundred ninety".