31916063542 has 64 divisors (see below), whose sum is σ = 55396281600. Its totient is φ = 13638948480.

The previous prime is 31916063537. The next prime is 31916063639. The reversal of 31916063542 is 24536061913.

It is a super-2 number, since 2×31916063542² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31916063495 and 31916063504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43187809 + ... + 43188547.

It is an arithmetic number, because the mean of its divisors is an integer number (865566900).

Almost surely, 2^31916063542 is an apocalyptic number.

31916063542 is a deficient number, since it is larger than the sum of its proper divisors (23480218058).

31916063542 is a wasteful number, since it uses less digits than its factorization.

31916063542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 31916063542 in words is "thirty-one billion, nine hundred sixteen million, sixty-three thousand, five hundred forty-two".