90637835973 has 8 divisors (see below), whose sum is σ = 120997650336. Its totient is φ = 60351622800.

The previous prime is 90637835933. The next prime is 90637835983. The reversal of 90637835973 is 37953873609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90637835973 - 2¹⁰ = 90637834949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90637835903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18397423 + ... + 18402348.

It is an arithmetic number, because the mean of its divisors is an integer number (15124706292).

Almost surely, 2^90637835973 is an apocalyptic number.

It is an amenable number.

90637835973 is a deficient number, since it is larger than the sum of its proper divisors (30359814363).

90637835973 is a wasteful number, since it uses less digits than its factorization.

90637835973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36800595.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 90637835973 in words is "ninety billion, six hundred thirty-seven million, eight hundred thirty-five thousand, nine hundred seventy-three".