91229461292 has 48 divisors (see below), whose sum is σ = 168052352160. Its totient is φ = 43277068800.

The previous prime is 91229461289. The next prime is 91229461307. The reversal of 91229461292 is 29216492219.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22686242 + ... + 22690262.

It is an arithmetic number, because the mean of its divisors is an integer number (3501090670).

Almost surely, 2^91229461292 is an apocalyptic number.

It is an amenable number.

91229461292 is a deficient number, since it is larger than the sum of its proper divisors (76822890868).

91229461292 is a wasteful number, since it uses less digits than its factorization.

91229461292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7842 (or 7840 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The spelling of 91229461292 in words is "ninety-one billion, two hundred twenty-nine million, four hundred sixty-one thousand, two hundred ninety-two".