6411764772 has 72 divisors (see below), whose sum is σ = 18560360000. Its totient is φ = 1828225728.

The previous prime is 6411764731. The next prime is 6411764783. The reversal of 6411764772 is 2774671146.

6411764772 is a `hidden beast` number, since 6 + 4 + 1 + 176 + 477 + 2 = 666.

It is a super-2 number, since 2×6411764772² = 82221454982920423968, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100254 + ... + 151242.

Almost surely, 2^6411764772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6411764772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9280180000).

6411764772 is an abundant number, since it is smaller than the sum of its proper divisors (12148595228).

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

6411764772 is a wasteful number, since it uses less digits than its factorization.

6411764772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51505 (or 51500 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 6411764772 is about 80073.4960645531. The cubic root of 6411764772 is about 1857.7724877779.

The spelling of 6411764772 in words is "six billion, four hundred eleven million, seven hundred sixty-four thousand, seven hundred seventy-two".