513357987974 has 16 divisors (see below), whose sum is σ = 841647771888. Its totient is φ = 233398120032.

The previous prime is 513357987971. The next prime is 513357987997. The reversal of 513357987974 is 479789753315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513357987971) 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, 147345557 + ... + 147349040.

It is an arithmetic number, because the mean of its divisors is an integer number (52602985743).

Almost surely, 2^513357987974 is an apocalyptic number.

513357987974 is a deficient number, since it is larger than the sum of its proper divisors (328289783914).

513357987974 is a wasteful number, since it uses less digits than its factorization.

513357987974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294694679.

The product of its digits is 200037600, while the sum is 68.

The spelling of 513357987974 in words is "five hundred thirteen billion, three hundred fifty-seven million, nine hundred eighty-seven thousand, nine hundred seventy-four".