91242004042 has 16 divisors (see below), whose sum is σ = 163215510912. Its totient is φ = 37403554320.

The previous prime is 91242004039. The next prime is 91242004081. The reversal of 91242004042 is 24040024219.

It is a self number, because there is not a number n which added to its sum of digits gives 91242004042.

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, 141679809 + ... + 141680452.

It is an arithmetic number, because the mean of its divisors is an integer number (10200969432).

Almost surely, 2^91242004042 is an apocalyptic number.

91242004042 is a deficient number, since it is larger than the sum of its proper divisors (71973506870).

91242004042 is a wasteful number, since it uses less digits than its factorization.

91242004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283360293.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 91242004042 in words is "ninety-one billion, two hundred forty-two million, four thousand, forty-two".