90171876438748 has 24 divisors (see below), whose sum is σ = 175799281654080. Its totient is φ = 40182692948160.

The previous prime is 90171876438703. The next prime is 90171876438773. The reversal of 90171876438748 is 84783467817109.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 29897835508 + ... + 29897838523.

It is an arithmetic number, because the mean of its divisors is an integer number (7324970068920).

Almost surely, 2^{90171876438748} is an apocalyptic number.

It is an amenable number.

90171876438748 is a deficient number, since it is larger than the sum of its proper divisors (85627405215332).

90171876438748 is a wasteful number, since it uses less digits than its factorization.

90171876438748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59795674077 (or 59795674075 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 73.

The spelling of 90171876438748 in words is "ninety trillion, one hundred seventy-one billion, eight hundred seventy-six million, four hundred thirty-eight thousand, seven hundred forty-eight".