31796860651 has 8 divisors (see below), whose sum is σ = 32419581264. Its totient is φ = 31174983840.

The previous prime is 31796860649. The next prime is 31796860657. The reversal of 31796860651 is 15606869713.

It is a happy number.

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 31796860651 - 2¹ = 31796860649 is a prime.

It is a super-2 number, since 2×31796860651² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31796860657) 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 7 ways as a sum of consecutive naturals, for example, 134580 + ... + 285841.

It is an arithmetic number, because the mean of its divisors is an integer number (4052447658).

Almost surely, 2^31796860651 is an apocalyptic number.

31796860651 is a deficient number, since it is larger than the sum of its proper divisors (622720613).

31796860651 is a wasteful number, since it uses less digits than its factorization.

31796860651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421901.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 31796860651 in words is "thirty-one billion, seven hundred ninety-six million, eight hundred sixty thousand, six hundred fifty-one".