91000852502 has 16 divisors (see below), whose sum is σ = 156062964480. Its totient is φ = 38984989608.

The previous prime is 91000852483. The next prime is 91000852513. The reversal of 91000852502 is 20525800019.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1244498 + ... + 1315589.

It is an arithmetic number, because the mean of its divisors is an integer number (9753935280).

Almost surely, 2^91000852502 is an apocalyptic number.

91000852502 is a deficient number, since it is larger than the sum of its proper divisors (65062111978).

91000852502 is a wasteful number, since it uses less digits than its factorization.

91000852502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562635.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 91000852502 in words is "ninety-one billion, eight hundred fifty-two thousand, five hundred two".