91396522270 has 16 divisors (see below), whose sum is σ = 168526271088. Its totient is φ = 35666935360.

The previous prime is 91396522207. The next prime is 91396522291. The reversal of 91396522270 is 7222569319.

It is a self number, because there is not a number n which added to its sum of digits gives 91396522270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111458764 + ... + 111459583.

It is an arithmetic number, because the mean of its divisors is an integer number (10532891943).

Almost surely, 2^91396522270 is an apocalyptic number.

91396522270 is a deficient number, since it is larger than the sum of its proper divisors (77129748818).

91396522270 is a wasteful number, since it uses less digits than its factorization.

91396522270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222918395.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 91396522270 in words is "ninety-one billion, three hundred ninety-six million, five hundred twenty-two thousand, two hundred seventy".