90634231142 has 32 divisors (see below), whose sum is σ = 167422538304. Its totient is φ = 35834342400.

The previous prime is 90634231139. The next prime is 90634231169. The reversal of 90634231142 is 24113243609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168542 + ... + 457902.

It is an arithmetic number, because the mean of its divisors is an integer number (5231954322).

Almost surely, 2^90634231142 is an apocalyptic number.

90634231142 is a deficient number, since it is larger than the sum of its proper divisors (76788307162).

90634231142 is a wasteful number, since it uses less digits than its factorization.

90634231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291104.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 90634231142 in words is "ninety billion, six hundred thirty-four million, two hundred thirty-one thousand, one hundred forty-two".