90981258397 has 8 divisors (see below), whose sum is σ = 91515824640. Its totient is φ = 90447299040.

The previous prime is 90981258391. The next prime is 90981258409. The reversal of 90981258397 is 79385218909.

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

It is a cyclic number.

It is not a de Polignac number, because 90981258397 - 2¹¹ = 90981256349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90981258391) 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, 150753 + ... + 452425.

It is an arithmetic number, because the mean of its divisors is an integer number (11439478080).

Almost surely, 2^90981258397 is an apocalyptic number.

It is an amenable number.

90981258397 is a deficient number, since it is larger than the sum of its proper divisors (534566243).

90981258397 is a wasteful number, since it uses less digits than its factorization.

90981258397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303443.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 90981258397 in words is "ninety billion, nine hundred eighty-one million, two hundred fifty-eight thousand, three hundred ninety-seven".