31400761663 has 2 divisors, whose sum is σ = 31400761664. Its totient is φ = 31400761662.

The previous prime is 31400761657. The next prime is 31400761699. The reversal of 31400761663 is 36616700413.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31400761663 - 2⁵ = 31400761631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31400761633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700380831 + 15700380832.

It is an arithmetic number, because the mean of its divisors is an integer number (15700380832).

Almost surely, 2^31400761663 is an apocalyptic number.

31400761663 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400761663 is an equidigital number, since it uses as much as digits as its factorization.

31400761663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 31400761663 in words is "thirty-one billion, four hundred million, seven hundred sixty-one thousand, six hundred sixty-three".