63901348917 has 32 divisors (see below), whose sum is σ = 99355378944. Its totient is φ = 35776512000.

The previous prime is 63901348843. The next prime is 63901348991. The reversal of 63901348917 is 71984310936.

It is an interprime number because it is at equal distance from previous prime (63901348843) and next prime (63901348991).

It is not a de Polignac number, because 63901348917 - 2⁷ = 63901348789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63901348917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63901348817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232167 + ... + 426267.

It is an arithmetic number, because the mean of its divisors is an integer number (3104855592).

Almost surely, 2^63901348917 is an apocalyptic number.

It is an amenable number.

63901348917 is a deficient number, since it is larger than the sum of its proper divisors (35454030027).

63901348917 is a wasteful number, since it uses less digits than its factorization.

63901348917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194429.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 63901348917 in words is "sixty-three billion, nine hundred one million, three hundred forty-eight thousand, nine hundred seventeen".