476428496644 has 27 divisors (see below), whose sum is σ = 836598161973. Its totient is φ = 237403218672.

The previous prime is 476428496639. The next prime is 476428496653. The reversal of 476428496644 is 446694824674.

It is a happy number.

The square root of 476428496644 is 690238.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1553148100 + 474875348544 = 39410^2 + 689112^2 .

It is a super-2 number, since 2×476428496644² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 777207682 + ... + 777208294.

Almost surely, 2^476428496644 is an apocalyptic number.

476428496644 is the 690238-th square number.

It is an amenable number.

476428496644 is a deficient number, since it is larger than the sum of its proper divisors (360169665329).

476428496644 is an frugal number, since it uses more digits than its factorization.

With its predecessor (476428496643) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1178).

476428496644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356 (or 1178 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 64.

Multiplying 476428496644 by its sum of digits (64), we get a square (30491423785216 = 5521904²).

The spelling of 476428496644 in words is "four hundred seventy-six billion, four hundred twenty-eight million, four hundred ninety-six thousand, six hundred forty-four".