91679015422 has 16 divisors (see below), whose sum is σ = 144913910400. Its totient is φ = 43379631000.

The previous prime is 91679015401. The next prime is 91679015429. The reversal of 91679015422 is 22451097619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91679015429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277704 + ... + 1347547.

It is an arithmetic number, because the mean of its divisors is an integer number (9057119400).

Almost surely, 2^91679015422 is an apocalyptic number.

91679015422 is a deficient number, since it is larger than the sum of its proper divisors (53234894978).

91679015422 is a wasteful number, since it uses less digits than its factorization.

91679015422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626191.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 91679015422 in words is "ninety-one billion, six hundred seventy-nine million, fifteen thousand, four hundred twenty-two".