99438465823407 has 12 divisors (see below), whose sum is σ = 143651685944520. Its totient is φ = 66283842969648.

The previous prime is 99438465823399. The next prime is 99438465823483. The reversal of 99438465823407 is 70432856483499.

99438465823407 is a `hidden beast` number, since 9 + 9 + 4 + 3 + 8 + 4 + 6 + 582 + 34 + 0 + 7 = 666.

It is not a de Polignac number, because 99438465823407 - 2³ = 99438465823399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99438465825407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705557233 + ... + 705698154.

It is an arithmetic number, because the mean of its divisors is an integer number (11970973828710).

Almost surely, 2^{99438465823407} is an apocalyptic number.

99438465823407 is a deficient number, since it is larger than the sum of its proper divisors (44213220121113).

99438465823407 is a wasteful number, since it uses less digits than its factorization.

99438465823407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411263222 (or 1411263219 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 72.

The spelling of 99438465823407 in words is "ninety-nine trillion, four hundred thirty-eight billion, four hundred sixty-five million, eight hundred twenty-three thousand, four hundred seven".