63865000757 has 2 divisors, whose sum is σ = 63865000758. Its totient is φ = 63865000756.

The previous prime is 63865000729. The next prime is 63865000781. The reversal of 63865000757 is 75700056836.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57376537156 + 6488463601 = 239534^2 + 80551^2 .

It is a cyclic number.

It is not a de Polignac number, because 63865000757 - 2⁸ = 63865000501 is a prime.

It is a super-2 number, since 2×63865000757² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63865000957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31932500378 + 31932500379.

It is an arithmetic number, because the mean of its divisors is an integer number (31932500379).

Almost surely, 2^63865000757 is an apocalyptic number.

It is an amenable number.

63865000757 is a deficient number, since it is larger than the sum of its proper divisors (1).

63865000757 is an equidigital number, since it uses as much as digits as its factorization.

63865000757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 63865000757 in words is "sixty-three billion, eight hundred sixty-five million, seven hundred fifty-seven", and thus it is an aban number.