91946478794 has 8 divisors (see below), whose sum is σ = 139005700608. Its totient is φ = 45611245260.

The previous prime is 91946478781. The next prime is 91946478809. The reversal of 91946478794 is 49787464919.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 180996752 + ... + 180997259.

It is an arithmetic number, because the mean of its divisors is an integer number (17375712576).

Almost surely, 2^91946478794 is an apocalyptic number.

91946478794 is a deficient number, since it is larger than the sum of its proper divisors (47059221814).

91946478794 is a wasteful number, since it uses less digits than its factorization.

91946478794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361994140.

The product of its digits is 109734912, while the sum is 68.

The spelling of 91946478794 in words is "ninety-one billion, nine hundred forty-six million, four hundred seventy-eight thousand, seven hundred ninety-four".