91472007923711 has 4 divisors (see below), whose sum is σ = 91819810235472. Its totient is φ = 91124205611952.

The previous prime is 91472007923677. The next prime is 91472007923717. The reversal of 91472007923711 is 11732970027419.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91472007923711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91472007923717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173901155486 + ... + 173901156011.

It is an arithmetic number, because the mean of its divisors is an integer number (22954952558868).

Almost surely, 2^{91472007923711} is an apocalyptic number.

91472007923711 is a deficient number, since it is larger than the sum of its proper divisors (347802311761).

91472007923711 is a wasteful number, since it uses less digits than its factorization.

91472007923711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347802311760.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 91472007923711 in words is "ninety-one trillion, four hundred seventy-two billion, seven million, nine hundred twenty-three thousand, seven hundred eleven".