31090936896 has 42 divisors (see below), whose sum is σ = 89116558622. Its totient is φ = 10363645440.

The previous prime is 31090936889. The next prime is 31090936937. The reversal of 31090936896 is 69863909013.

It can be written as a sum of positive squares in only one way, i.e., 27304257600 + 3786679296 = 165240^2 + 61536^2 .

It is a super-3 number, since 3×31090936896³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26988085 + ... + 26989236.

Almost surely, 2^31090936896 is an apocalyptic number.

31090936896 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31090936896 is an abundant number, since it is smaller than the sum of its proper divisors (58025621726).

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

31090936896 is a wasteful number, since it uses less digits than its factorization.

31090936896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53977339 (or 53977326 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 31090936896 in words is "thirty-one billion, ninety million, nine hundred thirty-six thousand, eight hundred ninety-six".