63377530761 has 4 divisors (see below), whose sum is σ = 84503374352. Its totient is φ = 42251687172.

The previous prime is 63377530721. The next prime is 63377530763. The reversal of 63377530761 is 16703577336.

63377530761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63377530761 - 2²⁷ = 63243313033 is a prime.

It is a super-2 number, since 2×63377530761² (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 63377530761.

It is not an unprimeable number, because it can be changed into a prime (63377530763) 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, 10562921791 + ... + 10562921796.

It is an arithmetic number, because the mean of its divisors is an integer number (21125843588).

Almost surely, 2^63377530761 is an apocalyptic number.

It is an amenable number.

63377530761 is a deficient number, since it is larger than the sum of its proper divisors (21125843591).

63377530761 is a wasteful number, since it uses less digits than its factorization.

63377530761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125843590.

The product of its (nonzero) digits is 1666980, while the sum is 48.

The spelling of 63377530761 in words is "sixty-three billion, three hundred seventy-seven million, five hundred thirty thousand, seven hundred sixty-one".