513731773740 has 48 divisors (see below), whose sum is σ = 1438654387968. Its totient is φ = 136975575744.

The previous prime is 513731773691. The next prime is 513731773747. The reversal of 513731773740 is 47377137315.

It is a self number, because there is not a number n which added to its sum of digits gives 513731773740.

It is not an unprimeable number, because it can be changed into a prime (513731773747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185272 + ... + 1030431.

It is an arithmetic number, because the mean of its divisors is an integer number (29971966416).

Almost surely, 2^513731773740 is an apocalyptic number.

It is an amenable number.

513731773740 is an abundant number, since it is smaller than the sum of its proper divisors (924922614228).

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

513731773740 is a wasteful number, since it uses less digits than its factorization.

513731773740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222758 (or 1222756 counting only the distinct ones).

The product of its (nonzero) digits is 1296540, while the sum is 48.

The spelling of 513731773740 in words is "five hundred thirteen billion, seven hundred thirty-one million, seven hundred seventy-three thousand, seven hundred forty".