99492688477 has 24 divisors (see below), whose sum is σ = 123341824320. Its totient is φ = 78581093760.

The previous prime is 99492688409. The next prime is 99492688517. The reversal of 99492688477 is 77488629499.

It is a de Polignac number, because none of the positive numbers 2^k-99492688477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99492689477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601849 + ... + 749137.

It is an arithmetic number, because the mean of its divisors is an integer number (5139242680).

Almost surely, 2^99492688477 is an apocalyptic number.

It is an amenable number.

99492688477 is a deficient number, since it is larger than the sum of its proper divisors (23849135843).

99492688477 is a wasteful number, since it uses less digits than its factorization.

99492688477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147893 (or 147880 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 73.

The spelling of 99492688477 in words is "ninety-nine billion, four hundred ninety-two million, six hundred eighty-eight thousand, four hundred seventy-seven".