31075413469 has 2 divisors, whose sum is σ = 31075413470. Its totient is φ = 31075413468.

The previous prime is 31075413403. The next prime is 31075413487. The reversal of 31075413469 is 96431457013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16182384100 + 14893029369 = 127210^2 + 122037^2 .

It is a cyclic number.

It is not a de Polignac number, because 31075413469 - 2¹⁵ = 31075380701 is a prime.

It is a super-2 number, since 2×31075413469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31075413169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15537706734 + 15537706735.

It is an arithmetic number, because the mean of its divisors is an integer number (15537706735).

Almost surely, 2^31075413469 is an apocalyptic number.

It is an amenable number.

31075413469 is a deficient number, since it is larger than the sum of its proper divisors (1).

31075413469 is an equidigital number, since it uses as much as digits as its factorization.

31075413469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 31075413469 in words is "thirty-one billion, seventy-five million, four hundred thirteen thousand, four hundred sixty-nine".