31427126316 has 36 divisors (see below), whose sum is σ = 81378375624. Its totient is φ = 10220203200.

The previous prime is 31427126309. The next prime is 31427126333. The reversal of 31427126316 is 61362172413.

31427126316 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 7 + 12 + 631 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10644570 + ... + 10647521.

It is an arithmetic number, because the mean of its divisors is an integer number (2260510434).

Almost surely, 2^31427126316 is an apocalyptic number.

31427126316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31427126316 is an abundant number, since it is smaller than the sum of its proper divisors (49951249308).

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

31427126316 is a wasteful number, since it uses less digits than its factorization.

31427126316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21292142 (or 21292137 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

Adding to 31427126316 its reverse (61362172413), we get a palindrome (92789298729).

The spelling of 31427126316 in words is "thirty-one billion, four hundred twenty-seven million, one hundred twenty-six thousand, three hundred sixteen".