91214303632 has 20 divisors (see below), whose sum is σ = 176949479196. Its totient is φ = 45549921920.

The previous prime is 91214303603. The next prime is 91214303671. The reversal of 91214303632 is 23630341219.

It can be written as a sum of positive squares in 2 ways, for example, as 27365099776 + 63849203856 = 165424^2 + 252684^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563719 + ... + 3589222.

Almost surely, 2^91214303632 is an apocalyptic number.

It is an amenable number.

91214303632 is a deficient number, since it is larger than the sum of its proper divisors (85735175564).

91214303632 is a wasteful number, since it uses less digits than its factorization.

91214303632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153746 (or 7153740 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 91214303632 in words is "ninety-one billion, two hundred fourteen million, three hundred three thousand, six hundred thirty-two".