91618305058 has 32 divisors (see below), whose sum is σ = 157366218240. Its totient is φ = 39188508480.

The previous prime is 91618305011. The next prime is 91618305089. The reversal of 91618305058 is 85050381619.

It is a junction number, because it is equal to n+sod(n) for n = 91618304999 and 91618305017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18420660 + ... + 18425632.

It is an arithmetic number, because the mean of its divisors is an integer number (4917694320).

Almost surely, 2^91618305058 is an apocalyptic number.

91618305058 is a deficient number, since it is larger than the sum of its proper divisors (65747913182).

91618305058 is a wasteful number, since it uses less digits than its factorization.

91618305058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 91618305058 in words is "ninety-one billion, six hundred eighteen million, three hundred five thousand, fifty-eight".