91367157651 has 32 divisors (see below), whose sum is σ = 151914521088. Its totient is φ = 47453629440.

The previous prime is 91367157631. The next prime is 91367157683. The reversal of 91367157651 is 15675176319.

It is a happy number.

It is not a de Polignac number, because 91367157651 - 2¹⁸ = 91366895507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91367157594 and 91367157603.

It is not an unprimeable number, because it can be changed into a prime (91367157631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1151965 + ... + 1228721.

It is an arithmetic number, because the mean of its divisors is an integer number (4747328784).

Almost surely, 2^91367157651 is an apocalyptic number.

91367157651 is a deficient number, since it is larger than the sum of its proper divisors (60547363437).

91367157651 is a wasteful number, since it uses less digits than its factorization.

91367157651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81931.

The product of its digits is 1190700, while the sum is 51.

The spelling of 91367157651 in words is "ninety-one billion, three hundred sixty-seven million, one hundred fifty-seven thousand, six hundred fifty-one".