631922732473 has 2 divisors, whose sum is σ = 631922732474. Its totient is φ = 631922732472.

The previous prime is 631922732461. The next prime is 631922732509. The reversal of 631922732473 is 374237229136.

631922732473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423472959504 + 208449772969 = 650748^2 + 456563^2 .

It is a cyclic number.

It is not a de Polignac number, because 631922732473 - 2²¹ = 631920635321 is a prime.

It is a super-2 number, since 2×631922732473² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (631922739473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315961366236 + 315961366237.

It is an arithmetic number, because the mean of its divisors is an integer number (315961366237).

Almost surely, 2^631922732473 is an apocalyptic number.

It is an amenable number.

631922732473 is a deficient number, since it is larger than the sum of its proper divisors (1).

631922732473 is an equidigital number, since it uses as much as digits as its factorization.

631922732473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 49.

The spelling of 631922732473 in words is "six hundred thirty-one billion, nine hundred twenty-two million, seven hundred thirty-two thousand, four hundred seventy-three".