472455520621631 has 2 divisors, whose sum is σ = 472455520621632. Its totient is φ = 472455520621630.

The previous prime is 472455520621589. The next prime is 472455520621687. The reversal of 472455520621631 is 136126025554274.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472455520621631 is a prime.

It is a super-2 number, since 2×472455520621631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472455520521631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236227760310815 + 236227760310816.

It is an arithmetic number, because the mean of its divisors is an integer number (236227760310816).

Almost surely, 2^{472455520621631} is an apocalyptic number.

472455520621631 is a deficient number, since it is larger than the sum of its proper divisors (1).

472455520621631 is an equidigital number, since it uses as much as digits as its factorization.

472455520621631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 472455520621631 in words is "four hundred seventy-two trillion, four hundred fifty-five billion, five hundred twenty million, six hundred twenty-one thousand, six hundred thirty-one".