63930461759 has 4 divisors (see below), whose sum is σ = 64123605480. Its totient is φ = 63737318040.

The previous prime is 63930461753. The next prime is 63930461761. The reversal of 63930461759 is 95716403936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63930461759 - 2¹² = 63930457663 is a prime.

It is a super-2 number, since 2×63930461759² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63930461759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63930461753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96571364 + ... + 96572025.

It is an arithmetic number, because the mean of its divisors is an integer number (16030901370).

Almost surely, 2^63930461759 is an apocalyptic number.

63930461759 is a deficient number, since it is larger than the sum of its proper divisors (193143721).

63930461759 is a wasteful number, since it uses less digits than its factorization.

63930461759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193143720.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 63930461759 in words is "sixty-three billion, nine hundred thirty million, four hundred sixty-one thousand, seven hundred fifty-nine".