31255542916543 has 8 divisors (see below), whose sum is σ = 34106606943696. Its totient is φ = 28406087395200.

The previous prime is 31255542916537. The next prime is 31255542916553. The reversal of 31255542916543 is 34561924555213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31255542916543 is a prime.

It is a super-2 number, since 2×31255542916543² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31255542916553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402085818 + ... + 402163543.

It is an arithmetic number, because the mean of its divisors is an integer number (4263325867962).

Almost surely, 2^{31255542916543} is an apocalyptic number.

31255542916543 is a deficient number, since it is larger than the sum of its proper divisors (2851064027153).

31255542916543 is a wasteful number, since it uses less digits than its factorization.

31255542916543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804252905.

The product of its digits is 19440000, while the sum is 55.

The spelling of 31255542916543 in words is "thirty-one trillion, two hundred fifty-five billion, five hundred forty-two million, nine hundred sixteen thousand, five hundred forty-three".