99427005415 has 16 divisors (see below), whose sum is σ = 125645800320. Its totient is φ = 75322928160.

The previous prime is 99427005401. The next prime is 99427005437. The reversal of 99427005415 is 51450072499.

99427005415 is a nontrivial binomial coefficient, being equal to C(445931, 2).

It is not a de Polignac number, because 99427005415 - 2⁷ = 99427005287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 445930.

It is an arithmetic number, because the mean of its divisors is an integer number (7852862520).

Almost surely, 2^99427005415 is an apocalyptic number.

99427005415 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99427005415 is the 445930-th triangular number.

99427005415 is the 148644-th centered nonagonal number.

99427005415 is a deficient number, since it is larger than the sum of its proper divisors (26218794905).

99427005415 is a wasteful number, since it uses less digits than its factorization.

99427005415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448302.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 99427005415 in words is "ninety-nine billion, four hundred twenty-seven million, five thousand, four hundred fifteen".