503040645464 has 32 divisors (see below), whose sum is σ = 1087483583520. Its totient is φ = 213680979456.

The previous prime is 503040645461. The next prime is 503040645469. The reversal of 503040645464 is 464546040305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503040645461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39740879 + ... + 39753534.

It is an arithmetic number, because the mean of its divisors is an integer number (33983861985).

Almost surely, 2^503040645464 is an apocalyptic number.

It is an amenable number.

503040645464 is an abundant number, since it is smaller than the sum of its proper divisors (584442938056).

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

503040645464 is a wasteful number, since it uses less digits than its factorization.

503040645464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79494539 (or 79494535 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 503040645464 its reverse (464546040305), we get a palindrome (967586685769).

The spelling of 503040645464 in words is "five hundred three billion, forty million, six hundred forty-five thousand, four hundred sixty-four".