99865057426 has 16 divisors (see below), whose sum is σ = 157724820000. Its totient is φ = 47291555808.

The previous prime is 99865057417. The next prime is 99865057447. The reversal of 99865057426 is 62475056899.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218176 + ... + 497323.

It is an arithmetic number, because the mean of its divisors is an integer number (9857801250).

Almost surely, 2^99865057426 is an apocalyptic number.

99865057426 is a deficient number, since it is larger than the sum of its proper divisors (57859762574).

99865057426 is a wasteful number, since it uses less digits than its factorization.

99865057426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719193.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 99865057426 in words is "ninety-nine billion, eight hundred sixty-five million, fifty-seven thousand, four hundred twenty-six".