90237667431 has 8 divisors (see below), whose sum is σ = 120477101824. Its totient is φ = 60078339000.

The previous prime is 90237667427. The next prime is 90237667459. The reversal of 90237667431 is 13476673209.

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

It is not a de Polignac number, because 90237667431 - 2² = 90237667427 is a prime.

It is a super-2 number, since 2×90237667431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90237667231) 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, 20023861 + ... + 20028366.

It is an arithmetic number, because the mean of its divisors is an integer number (15059637728).

Almost surely, 2^90237667431 is an apocalyptic number.

90237667431 is a deficient number, since it is larger than the sum of its proper divisors (30239434393).

90237667431 is a wasteful number, since it uses less digits than its factorization.

90237667431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40052981.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 90237667431 in words is "ninety billion, two hundred thirty-seven million, six hundred sixty-seven thousand, four hundred thirty-one".