90237037042 has 4 divisors (see below), whose sum is σ = 135355555566. Its totient is φ = 45118518520.

The previous prime is 90237037039. The next prime is 90237037109. The reversal of 90237037042 is 24073073209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24073073209 = 47 ⋅512193047.

It can be written as a sum of positive squares in only one way, i.e., 65607187321 + 24629849721 = 256139^2 + 156939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90237036992 and 90237037010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22559259259 + ... + 22559259262.

Almost surely, 2^90237037042 is an apocalyptic number.

90237037042 is a deficient number, since it is larger than the sum of its proper divisors (45118518524).

90237037042 is a wasteful number, since it uses less digits than its factorization.

90237037042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45118518523.

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 90237037042 in words is "ninety billion, two hundred thirty-seven million, thirty-seven thousand, forty-two".