99932054977 has 4 divisors (see below), whose sum is σ = 99982048000. Its totient is φ = 99882061956.

The previous prime is 99932054947. The next prime is 99932054983. The reversal of 99932054977 is 77945023999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77945023999 = 2287 ⋅34081777.

It is a cyclic number.

It is not a de Polignac number, because 99932054977 - 2³¹ = 97784571329 is a prime.

It is a super-2 number, since 2×99932054977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99932054947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24993513 + ... + 24997510.

It is an arithmetic number, because the mean of its divisors is an integer number (24995512000).

Almost surely, 2^99932054977 is an apocalyptic number.

It is an amenable number.

99932054977 is a deficient number, since it is larger than the sum of its proper divisors (49993023).

99932054977 is a wasteful number, since it uses less digits than its factorization.

99932054977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49993022.

The product of its (nonzero) digits is 38578680, while the sum is 64.

It can be divided in two parts, 999 and 32054977, that multiplied together give a palindrome (32022922023).

The spelling of 99932054977 in words is "ninety-nine billion, nine hundred thirty-two million, fifty-four thousand, nine hundred seventy-seven".