91471375786004 has 12 divisors (see below), whose sum is σ = 165238614323328. Its totient is φ = 44260343122200.

The previous prime is 91471375785997. The next prime is 91471375786129. The reversal of 91471375786004 is 40068757317419.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368836192562 + ... + 368836192809.

It is an arithmetic number, because the mean of its divisors is an integer number (13769884526944).

Almost surely, 2^{91471375786004} is an apocalyptic number.

It is an amenable number.

91471375786004 is a deficient number, since it is larger than the sum of its proper divisors (73767238537324).

91471375786004 is a wasteful number, since it uses less digits than its factorization.

91471375786004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737672385406 (or 737672385404 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 91471375786004 in words is "ninety-one trillion, four hundred seventy-one billion, three hundred seventy-five million, seven hundred eighty-six thousand, four".