91063846473 has 16 divisors (see below), whose sum is σ = 125978062080. Its totient is φ = 58441856256.

The previous prime is 91063846469. The next prime is 91063846537. The reversal of 91063846473 is 37464836019.

It is not a de Polignac number, because 91063846473 - 2² = 91063846469 is a prime.

It is a super-2 number, since 2×91063846473² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91063842473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1523665 + ... + 1582302.

It is an arithmetic number, because the mean of its divisors is an integer number (7873628880).

Almost surely, 2^91063846473 is an apocalyptic number.

It is an amenable number.

91063846473 is a deficient number, since it is larger than the sum of its proper divisors (34914215607).

91063846473 is a wasteful number, since it uses less digits than its factorization.

91063846473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106336.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 91063846473 in words is "ninety-one billion, sixty-three million, eight hundred forty-six thousand, four hundred seventy-three".