74530135990 has 16 divisors (see below), whose sum is σ = 134163037152. Its totient is φ = 29810100544.

The previous prime is 74530135973. The next prime is 74530136017. The reversal of 74530135990 is 9953103547.

It is a self number, because there is not a number n which added to its sum of digits gives 74530135990.

It is a congruent number.

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, 78679 + ... + 394018.

It is an arithmetic number, because the mean of its divisors is an integer number (8385189822).

Almost surely, 2^74530135990 is an apocalyptic number.

74530135990 is a deficient number, since it is larger than the sum of its proper divisors (59632901162).

74530135990 is a wasteful number, since it uses less digits than its factorization.

74530135990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488471.

The product of its (nonzero) digits is 510300, while the sum is 46.

The spelling of 74530135990 in words is "seventy-four billion, five hundred thirty million, one hundred thirty-five thousand, nine hundred ninety".