63802767955 has 16 divisors (see below), whose sum is σ = 79758201600. Its totient is φ = 48942506880.

The previous prime is 63802767929. The next prime is 63802767989. The reversal of 63802767955 is 55976720836.

It is not a de Polignac number, because 63802767955 - 2³⁵ = 29443029587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63802767955.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1871320 + ... + 1905109.

It is an arithmetic number, because the mean of its divisors is an integer number (4984887600).

Almost surely, 2^63802767955 is an apocalyptic number.

63802767955 is a deficient number, since it is larger than the sum of its proper divisors (15955433645).

63802767955 is a wasteful number, since it uses less digits than its factorization.

63802767955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776574.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 63802767955 in words is "sixty-three billion, eight hundred two million, seven hundred sixty-seven thousand, nine hundred fifty-five".