6446769534 has 64 divisors (see below), whose sum is σ = 14429664000. Its totient is φ = 2133462240.

The previous prime is 6446769499. The next prime is 6446769551. The reversal of 6446769534 is 4359676446.

It is a happy number.

6446769534 is a `hidden beast` number, since 6 + 4 + 46 + 7 + 69 + 534 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5504769 + ... + 5505939.

It is an arithmetic number, because the mean of its divisors is an integer number (225463500).

Almost surely, 2^6446769534 is an apocalyptic number.

6446769534 is an abundant number, since it is smaller than the sum of its proper divisors (7982894466).

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

6446769534 is a wasteful number, since it uses less digits than its factorization.

6446769534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1824 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The square root of 6446769534 is about 80291.7774993181. Note that the first 3 decimals coincide. The cubic root of 6446769534 is about 1861.1471643435.

The spelling of 6446769534 in words is "six billion, four hundred forty-six million, seven hundred sixty-nine thousand, five hundred thirty-four".