99490439952 has 30 divisors (see below), whose sum is σ = 278435051102. Its totient is φ = 33163479936.

The previous prime is 99490439869. The next prime is 99490439953. The reversal of 99490439952 is 25993409499.

99490439952 is a `hidden beast` number, since 9 + 9 + 490 + 4 + 3 + 99 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 99429224976 + 61214976 = 315324^2 + 7824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99490439952.

It is not an unprimeable number, because it can be changed into a prime (99490439953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345452773 + ... + 345453060.

Almost surely, 2^99490439952 is an apocalyptic number.

It is an amenable number.

99490439952 is an abundant number, since it is smaller than the sum of its proper divisors (178944611150).

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

99490439952 is a wasteful number, since it uses less digits than its factorization.

99490439952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690905847 (or 690905838 counting only the distinct ones).

The product of its (nonzero) digits is 28343520, while the sum is 63.

The spelling of 99490439952 in words is "ninety-nine billion, four hundred ninety million, four hundred thirty-nine thousand, nine hundred fifty-two".