99128961370718 has 8 divisors (see below), whose sum is σ = 148767900470712. Its totient is φ = 49539661213816.

The previous prime is 99128961370687. The next prime is 99128961370721. The reversal of 99128961370718 is 81707316982199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12409730780 + ... + 12409738767.

It is an arithmetic number, because the mean of its divisors is an integer number (18595987558839).

Almost surely, 2^{99128961370718} is an apocalyptic number.

99128961370718 is a deficient number, since it is larger than the sum of its proper divisors (49638939099994).

99128961370718 is a wasteful number, since it uses less digits than its factorization.

99128961370718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24819471546.

The product of its (nonzero) digits is 82301184, while the sum is 71.

The spelling of 99128961370718 in words is "ninety-nine trillion, one hundred twenty-eight billion, nine hundred sixty-one million, three hundred seventy thousand, seven hundred eighteen".