91442203024 has 10 divisors (see below), whose sum is σ = 177169268390. Its totient is φ = 45721101504.

The previous prime is 91442202991. The next prime is 91442203079. The reversal of 91442203024 is 42030224419.

It can be written as a sum of positive squares in only one way, i.e., 67839411600 + 23602791424 = 260460^2 + 153632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2857568829 + ... + 2857568860.

It is an arithmetic number, because the mean of its divisors is an integer number (17716926839).

Almost surely, 2^91442203024 is an apocalyptic number.

It is an amenable number.

91442203024 is a deficient number, since it is larger than the sum of its proper divisors (85727065366).

91442203024 is a wasteful number, since it uses less digits than its factorization.

91442203024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715137697 (or 5715137691 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 91442203024 in words is "ninety-one billion, four hundred forty-two million, two hundred three thousand, twenty-four".