63797251701 has 4 divisors (see below), whose sum is σ = 85063002272. Its totient is φ = 42531501132.

The previous prime is 63797251697. The next prime is 63797251703. The reversal of 63797251701 is 10715279736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63797251701 - 2² = 63797251697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63797251703) 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, 10632875281 + ... + 10632875286.

It is an arithmetic number, because the mean of its divisors is an integer number (21265750568).

Almost surely, 2^63797251701 is an apocalyptic number.

It is an amenable number.

63797251701 is a deficient number, since it is larger than the sum of its proper divisors (21265750571).

63797251701 is a wasteful number, since it uses less digits than its factorization.

63797251701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265750570.

The product of its (nonzero) digits is 555660, while the sum is 48.

The spelling of 63797251701 in words is "sixty-three billion, seven hundred ninety-seven million, two hundred fifty-one thousand, seven hundred one".