90271515842 has 16 divisors (see below), whose sum is σ = 139868640000. Its totient is φ = 43650581520.

The previous prime is 90271515821. The next prime is 90271515853. The reversal of 90271515842 is 24851517209.

It is a junction number, because it is equal to n+sod(n) for n = 90271515793 and 90271515802.

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, 392717 + ... + 578592.

It is an arithmetic number, because the mean of its divisors is an integer number (8741790000).

Almost surely, 2^90271515842 is an apocalyptic number.

90271515842 is a deficient number, since it is larger than the sum of its proper divisors (49597124158).

90271515842 is a wasteful number, since it uses less digits than its factorization.

90271515842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972841.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 90271515842 in words is "ninety billion, two hundred seventy-one million, five hundred fifteen thousand, eight hundred forty-two".