503898921064 has 64 divisors (see below), whose sum is σ = 1180016553600. Its totient is φ = 195979084800.

The previous prime is 503898921059. The next prime is 503898921107. The reversal of 503898921064 is 460129898305.

It is a junction number, because it is equal to n+sod(n) for n = 503898920996 and 503898921014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368317 + ... + 1069324.

It is an arithmetic number, because the mean of its divisors is an integer number (18437758650).

Almost surely, 2^503898921064 is an apocalyptic number.

It is an amenable number.

503898921064 is an abundant number, since it is smaller than the sum of its proper divisors (676117632536).

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

503898921064 is a wasteful number, since it uses less digits than its factorization.

503898921064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438234 (or 1438230 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 503898921064 in words is "five hundred three billion, eight hundred ninety-eight million, nine hundred twenty-one thousand, sixty-four".