91983596254 has 16 divisors (see below), whose sum is σ = 154586684016. Its totient is φ = 40680705600.

The previous prime is 91983596231. The next prime is 91983596269. The reversal of 91983596254 is 45269538919.

It is a junction number, because it is equal to n+sod(n) for n = 91983596192 and 91983596201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56500167 + ... + 56501794.

It is an arithmetic number, because the mean of its divisors is an integer number (9661667751).

Almost surely, 2^91983596254 is an apocalyptic number.

91983596254 is a deficient number, since it is larger than the sum of its proper divisors (62603087762).

91983596254 is a wasteful number, since it uses less digits than its factorization.

91983596254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113002011.

The product of its digits is 20995200, while the sum is 61.

The spelling of 91983596254 in words is "ninety-one billion, nine hundred eighty-three million, five hundred ninety-six thousand, two hundred fifty-four".