6464146776 has 32 divisors (see below), whose sum is σ = 17110977840. Its totient is φ = 2027967488.

The previous prime is 6464146763. The next prime is 6464146781. The reversal of 6464146776 is 6776414646.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7921341 + ... + 7922156.

Almost surely, 2^6464146776 is an apocalyptic number.

It is an amenable number.

6464146776 is an abundant number, since it is smaller than the sum of its proper divisors (10646831064).

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

6464146776 is a wasteful number, since it uses less digits than its factorization.

6464146776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843523 (or 15843519 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 51.

The square root of 6464146776 is about 80399.9177611520. The cubic root of 6464146776 is about 1862.8179023801.

The spelling of 6464146776 in words is "six billion, four hundred sixty-four million, one hundred forty-six thousand, seven hundred seventy-six".