501912737764 has 81 divisors (see below), whose sum is σ = 950243489769. Its totient is φ = 231920810880.

The previous prime is 501912737759. The next prime is 501912737779. The reversal of 501912737764 is 467737219105.

It is a happy number.

The square root of 501912737764 is 708458.

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., 390762512100 + 111150225664 = 625110^2 + 333392^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1613867169 + ... + 1613867479.

Almost surely, 2^501912737764 is an apocalyptic number.

501912737764 is the 708458-th square number.

It is an amenable number.

501912737764 is a deficient number, since it is larger than the sum of its proper divisors (448330752005).

501912737764 is an equidigital number, since it uses as much as digits as its factorization.

501912737764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 501912737764 in words is "five hundred one billion, nine hundred twelve million, seven hundred thirty-seven thousand, seven hundred sixty-four".