63800531879 has 12 divisors (see below), whose sum is σ = 74568696408. Its totient is φ = 54426985200.

The previous prime is 63800531869. The next prime is 63800531923. The reversal of 63800531879 is 97813500836.

It is a happy number.

It is not a de Polignac number, because 63800531879 - 2¹² = 63800527783 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 (63800531869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3075092 + ... + 3095769.

It is an arithmetic number, because the mean of its divisors is an integer number (6214058034).

Almost surely, 2^63800531879 is an apocalyptic number.

63800531879 is a deficient number, since it is larger than the sum of its proper divisors (10768164529).

63800531879 is a wasteful number, since it uses less digits than its factorization.

63800531879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171086 (or 6171079 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 63800531879 in words is "sixty-three billion, eight hundred million, five hundred thirty-one thousand, eight hundred seventy-nine".