31260136473426 has 64 divisors (see below), whose sum is σ = 71497766845440. Its totient is φ = 8925715788480.

The previous prime is 31260136473409. The next prime is 31260136473439. The reversal of 31260136473426 is 62437463106213.

It is a happy number.

It is a super-2 number, since 2×31260136473426² (a number of 28 digits) contains 22 as substring.

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, 571800945 + ... + 571855611.

It is an arithmetic number, because the mean of its divisors is an integer number (1117152606960).

Almost surely, 2^{31260136473426} is an apocalyptic number.

31260136473426 is an abundant number, since it is smaller than the sum of its proper divisors (40237630372014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31260136473426 is a wasteful number, since it uses less digits than its factorization.

31260136473426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63199.

The product of its (nonzero) digits is 2612736, while the sum is 48.

Adding to 31260136473426 its reverse (62437463106213), we get a palindrome (93697599579639).

The spelling of 31260136473426 in words is "thirty-one trillion, two hundred sixty billion, one hundred thirty-six million, four hundred seventy-three thousand, four hundred twenty-six".