5518972764 has 36 divisors (see below), whose sum is σ = 13953005976. Its totient is φ = 1839358368.

The previous prime is 5518972763. The next prime is 5518972777. The reversal of 5518972764 is 4672798155.

5518972764 is a `hidden beast` number, since 551 + 8 + 9 + 7 + 27 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5518972764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518972763) 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, 389142 + ... + 403074.

Almost surely, 2^5518972764 is an apocalyptic number.

It is an amenable number.

5518972764 is an abundant number, since it is smaller than the sum of its proper divisors (8434033212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5518972764 is a wasteful number, since it uses less digits than its factorization.

5518972764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24946 (or 24941 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 5518972764 is about 74289.7890964835. The cubic root of 5518972764 is about 1767.2015493178.

The spelling of 5518972764 in words is "five billion, five hundred eighteen million, nine hundred seventy-two thousand, seven hundred sixty-four".