90697328273751 has 4 divisors (see below), whose sum is σ = 120929771031672. Its totient is φ = 60464885515832.

The previous prime is 90697328273749. The next prime is 90697328273809. The reversal of 90697328273751 is 15737282379609.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90697328273751 - 2¹ = 90697328273749 is a prime.

It is a super-2 number, since 2×90697328273751² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90697328271751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15116221378956 + ... + 15116221378961.

It is an arithmetic number, because the mean of its divisors is an integer number (30232442757918).

Almost surely, 2^{90697328273751} is an apocalyptic number.

90697328273751 is a deficient number, since it is larger than the sum of its proper divisors (30232442757921).

90697328273751 is a wasteful number, since it uses less digits than its factorization.

90697328273751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30232442757920.

The product of its (nonzero) digits is 240045120, while the sum is 69.

The spelling of 90697328273751 in words is "ninety trillion, six hundred ninety-seven billion, three hundred twenty-eight million, two hundred seventy-three thousand, seven hundred fifty-one".