516803781740 has 48 divisors (see below), whose sum is σ = 1123208462880. Its totient is φ = 199504865280.

The previous prime is 516803781737. The next prime is 516803781763. The reversal of 516803781740 is 47187308615.

It is a super-2 number, since 2×516803781740² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 1122335 + ... + 1514345.

It is an arithmetic number, because the mean of its divisors is an integer number (23400176310).

Almost surely, 2^516803781740 is an apocalyptic number.

It is an amenable number.

516803781740 is an abundant number, since it is smaller than the sum of its proper divisors (606404681140).

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

516803781740 is a wasteful number, since it uses less digits than its factorization.

516803781740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394322 (or 394320 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 516803781740 in words is "five hundred sixteen billion, eight hundred three million, seven hundred eighty-one thousand, seven hundred forty".