31884061396 has 12 divisors (see below), whose sum is σ = 60869571840. Its totient is φ = 14492755160.

The previous prime is 31884061387. The next prime is 31884061399. The reversal of 31884061396 is 69316048813.

It is a super-2 number, since 2×31884061396² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31884061399) 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, 362318836 + ... + 362318923.

It is an arithmetic number, because the mean of its divisors is an integer number (5072464320).

Almost surely, 2^31884061396 is an apocalyptic number.

It is an amenable number.

31884061396 is a deficient number, since it is larger than the sum of its proper divisors (28985510444).

31884061396 is a wasteful number, since it uses less digits than its factorization.

31884061396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724637774 (or 724637772 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 31884061396 in words is "thirty-one billion, eight hundred eighty-four million, sixty-one thousand, three hundred ninety-six".