56838631939651 has 2 divisors, whose sum is σ = 56838631939652. Its totient is φ = 56838631939650.

The previous prime is 56838631939547. The next prime is 56838631939699. The reversal of 56838631939651 is 15693913683865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56838631939651 - 2⁹ = 56838631939139 is a prime.

It is a super-2 number, since 2×56838631939651² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56838631939951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28419315969825 + 28419315969826.

It is an arithmetic number, because the mean of its divisors is an integer number (28419315969826).

Almost surely, 2^{56838631939651} is an apocalyptic number.

56838631939651 is a deficient number, since it is larger than the sum of its proper divisors (1).

56838631939651 is an equidigital number, since it uses as much as digits as its factorization.

56838631939651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 755827200, while the sum is 73.

The spelling of 56838631939651 in words is "fifty-six trillion, eight hundred thirty-eight billion, six hundred thirty-one million, nine hundred thirty-nine thousand, six hundred fifty-one".