1516781796 has 24 divisors (see below), whose sum is σ = 3540583200. Its totient is φ = 505390272.

The previous prime is 1516781771. The next prime is 1516781801. The reversal of 1516781796 is 6971876151.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7255 + ... + 55553.

It is an arithmetic number, because the mean of its divisors is an integer number (147524300).

Almost surely, 2^1516781796 is an apocalyptic number.

It is an amenable number.

1516781796 is an abundant number, since it is smaller than the sum of its proper divisors (2023801404).

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

1516781796 is a wasteful number, since it uses less digits than its factorization.

1516781796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50923 (or 50921 counting only the distinct ones).

The product of its digits is 635040, while the sum is 51.

The square root of 1516781796 is about 38945.8829146291. The cubic root of 1516781796 is about 1148.9673896461.

The spelling of 1516781796 in words is "one billion, five hundred sixteen million, seven hundred eighty-one thousand, seven hundred ninety-six".