63672342874057 has 2 divisors, whose sum is σ = 63672342874058. Its totient is φ = 63672342874056.

The previous prime is 63672342874001. The next prime is 63672342874061. The reversal of 63672342874057 is 75047824327636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54974231920521 + 8698110953536 = 7414461^2 + 2949256^2 .

It is a cyclic number.

It is not a de Polignac number, because 63672342874057 - 2³¹ = 63670195390409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63672342874057.

It is not a weakly prime, because it can be changed into another prime (63672342874087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31836171437028 + 31836171437029.

It is an arithmetic number, because the mean of its divisors is an integer number (31836171437029).

Almost surely, 2^{63672342874057} is an apocalyptic number.

It is an amenable number.

63672342874057 is a deficient number, since it is larger than the sum of its proper divisors (1).

63672342874057 is an equidigital number, since it uses as much as digits as its factorization.

63672342874057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 284497920, while the sum is 64.

The spelling of 63672342874057 in words is "sixty-three trillion, six hundred seventy-two billion, three hundred forty-two million, eight hundred seventy-four thousand, fifty-seven".