31427732363 has 32 divisors (see below), whose sum is σ = 35539891200. Its totient is φ = 27614006784.

The previous prime is 31427732359. The next prime is 31427732417. The reversal of 31427732363 is 36323772413.

It is a cyclic number.

It is not a de Polignac number, because 31427732363 - 2² = 31427732359 is a prime.

It is a super-2 number, since 2×31427732363² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31427732363.

It is not an unprimeable number, because it can be changed into a prime (31427732333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19315556 + ... + 19317182.

It is an arithmetic number, because the mean of its divisors is an integer number (1110621600).

Almost surely, 2^31427732363 is an apocalyptic number.

31427732363 is a deficient number, since it is larger than the sum of its proper divisors (4112158837).

31427732363 is a wasteful number, since it uses less digits than its factorization.

31427732363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499.

The product of its digits is 381024, while the sum is 41.

The spelling of 31427732363 in words is "thirty-one billion, four hundred twenty-seven million, seven hundred thirty-two thousand, three hundred sixty-three".