31474026641 has 2 divisors, whose sum is σ = 31474026642. Its totient is φ = 31474026640.

The previous prime is 31474026637. The next prime is 31474026671. The reversal of 31474026641 is 14662047413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31065825025 + 408201616 = 176255^2 + 20204^2 .

It is a cyclic number.

It is not a de Polignac number, because 31474026641 - 2² = 31474026637 is a prime.

It is a super-2 number, since 2×31474026641² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31474026595 and 31474026604.

It is not a weakly prime, because it can be changed into another prime (31474026671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15737013320 + 15737013321.

It is an arithmetic number, because the mean of its divisors is an integer number (15737013321).

Almost surely, 2^31474026641 is an apocalyptic number.

It is an amenable number.

31474026641 is a deficient number, since it is larger than the sum of its proper divisors (1).

31474026641 is an equidigital number, since it uses as much as digits as its factorization.

31474026641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 31474026641 in words is "thirty-one billion, four hundred seventy-four million, twenty-six thousand, six hundred forty-one".