31561256546006 has 32 divisors (see below), whose sum is σ = 52031955059712. Its totient is φ = 14238932067360.

The previous prime is 31561256545991. The next prime is 31561256546081. The reversal of 31561256546006 is 60064565216513.

It is a super-2 number, since 2×31561256546006² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1904486 + ... + 8170041.

It is an arithmetic number, because the mean of its divisors is an integer number (1625998595616).

Almost surely, 2^{31561256546006} is an apocalyptic number.

31561256546006 is a deficient number, since it is larger than the sum of its proper divisors (20470698513706).

31561256546006 is a wasteful number, since it uses less digits than its factorization.

31561256546006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075604.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 31561256546006 in words is "thirty-one trillion, five hundred sixty-one billion, two hundred fifty-six million, five hundred forty-six thousand, six".