503977089697 has 4 divisors (see below), whose sum is σ = 504096265620. Its totient is φ = 503857913776.

The previous prime is 503977089673. The next prime is 503977089709. The reversal of 503977089697 is 796980779305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 397257920656 + 106719169041 = 630284^2 + 326679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503977089697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503977089197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59581618 + ... + 59590075.

It is an arithmetic number, because the mean of its divisors is an integer number (126024066405).

Almost surely, 2^503977089697 is an apocalyptic number.

It is an amenable number.

503977089697 is a deficient number, since it is larger than the sum of its proper divisors (119175923).

503977089697 is a wasteful number, since it uses less digits than its factorization.

503977089697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119175922.

The product of its (nonzero) digits is 180033840, while the sum is 70.

The spelling of 503977089697 in words is "five hundred three billion, nine hundred seventy-seven million, eighty-nine thousand, six hundred ninety-seven".