90379678580 has 12 divisors (see below), whose sum is σ = 189797325060. Its totient is φ = 36151871424.

The previous prime is 90379678547. The next prime is 90379678583. The reversal of 90379678580 is 8587697309.

It can be written as a sum of positive squares in 2 ways, for example, as 37242052324 + 53137626256 = 192982^2 + 230516^2 .

It is a super-2 number, since 2×90379678580² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90379678583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2259491945 + ... + 2259491984.

It is an arithmetic number, because the mean of its divisors is an integer number (15816443755).

Almost surely, 2^90379678580 is an apocalyptic number.

It is an amenable number.

90379678580 is an abundant number, since it is smaller than the sum of its proper divisors (99417646480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90379678580 is a wasteful number, since it uses less digits than its factorization.

90379678580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518983938 (or 4518983936 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 90379678580 in words is "ninety billion, three hundred seventy-nine million, six hundred seventy-eight thousand, five hundred eighty".