91501940746 has 4 divisors (see below), whose sum is σ = 137252911122. Its totient is φ = 45750970372.

The previous prime is 91501940731. The next prime is 91501940839. The reversal of 91501940746 is 64704910519.

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

It can be written as a sum of positive squares in only one way, i.e., 83900019025 + 7601921721 = 289655^2 + 87189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91501940696 and 91501940705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22875485185 + ... + 22875485188.

Almost surely, 2^91501940746 is an apocalyptic number.

91501940746 is a deficient number, since it is larger than the sum of its proper divisors (45750970376).

91501940746 is a wasteful number, since it uses less digits than its factorization.

91501940746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45750970375.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 91501940746 in words is "ninety-one billion, five hundred one million, nine hundred forty thousand, seven hundred forty-six".