501641235264 has 56 divisors (see below), whose sum is σ = 1429355962720. Its totient is φ = 154351148544.

The previous prime is 501641235131. The next prime is 501641235289. The reversal of 501641235264 is 462532146105.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100486534 + ... + 100491525.

It is an arithmetic number, because the mean of its divisors is an integer number (25524213620).

Almost surely, 2^501641235264 is an apocalyptic number.

It is an amenable number.

501641235264 is an abundant number, since it is smaller than the sum of its proper divisors (927714727456).

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

501641235264 is a wasteful number, since it uses less digits than its factorization.

501641235264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200978087 (or 200978077 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 501641235264 in words is "five hundred one billion, six hundred forty-one million, two hundred thirty-five thousand, two hundred sixty-four".