99138662088474 has 64 divisors (see below), whose sum is σ = 210758719248000. Its totient is φ = 31000441098240.

The previous prime is 99138662088407. The next prime is 99138662088527. The reversal of 99138662088474 is 47488026683199.

It is a junction number, because it is equal to n+sod(n) for n = 99138662088396 and 99138662088405.

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, 17514154 + ... + 22472714.

It is an arithmetic number, because the mean of its divisors is an integer number (3293104988250).

Almost surely, 2^{99138662088474} is an apocalyptic number.

99138662088474 is an abundant number, since it is smaller than the sum of its proper divisors (111620057159526).

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

99138662088474 is a wasteful number, since it uses less digits than its factorization.

99138662088474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960303.

The product of its (nonzero) digits is 1003290624, while the sum is 75.

The spelling of 99138662088474 in words is "ninety-nine trillion, one hundred thirty-eight billion, six hundred sixty-two million, eighty-eight thousand, four hundred seventy-four".