456661307639 has 2 divisors, whose sum is σ = 456661307640. Its totient is φ = 456661307638.

The previous prime is 456661307561. The next prime is 456661307653. The reversal of 456661307639 is 936703166654.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456661307639 is a prime.

It is a super-2 number, since 2×456661307639² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456661307689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228330653819 + 228330653820.

It is an arithmetic number, because the mean of its divisors is an integer number (228330653820).

Almost surely, 2^456661307639 is an apocalyptic number.

456661307639 is a deficient number, since it is larger than the sum of its proper divisors (1).

456661307639 is an equidigital number, since it uses as much as digits as its factorization.

456661307639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 56.

The spelling of 456661307639 in words is "four hundred fifty-six billion, six hundred sixty-one million, three hundred seven thousand, six hundred thirty-nine".