63772138707 has 8 divisors (see below), whose sum is σ = 89504756160. Its totient is φ = 40277140200.

The previous prime is 63772138637. The next prime is 63772138723. The reversal of 63772138707 is 70783127736.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63772138707 - 2³⁴ = 46592269523 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 63772138707.

It is not an unprimeable number, because it can be changed into a prime (63772138747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559404669 + ... + 559404782.

It is an arithmetic number, because the mean of its divisors is an integer number (11188094520).

Almost surely, 2^63772138707 is an apocalyptic number.

63772138707 is a deficient number, since it is larger than the sum of its proper divisors (25732617453).

63772138707 is a wasteful number, since it uses less digits than its factorization.

63772138707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118809473.

The product of its (nonzero) digits is 2074464, while the sum is 51.

The spelling of 63772138707 in words is "sixty-three billion, seven hundred seventy-two million, one hundred thirty-eight thousand, seven hundred seven".