505240544644 has 24 divisors (see below), whose sum is σ = 986981532768. Its totient is φ = 224313983040.

The previous prime is 505240544581. The next prime is 505240544651. The reversal of 505240544644 is 446445042505.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 505240544644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133518337 + ... + 133522120.

It is an arithmetic number, because the mean of its divisors is an integer number (41124230532).

Almost surely, 2^505240544644 is an apocalyptic number.

It is an amenable number.

505240544644 is a deficient number, since it is larger than the sum of its proper divisors (481740988124).

505240544644 is a wasteful number, since it uses less digits than its factorization.

505240544644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267040515 (or 267040513 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 43.

The spelling of 505240544644 in words is "five hundred five billion, two hundred forty million, five hundred forty-four thousand, six hundred forty-four".