514979899641 has 27 divisors (see below), whose sum is σ = 790246387983. Its totient is φ = 323101679040.

The previous prime is 514979899639. The next prime is 514979899649. The reversal of 514979899641 is 146998979415.

The square root of 514979899641 is 717621.

It is a perfect power (a square), and thus also a powerful number.

514979899641 is a `hidden beast` number, since 5 + 1 + 497 + 9 + 8 + 9 + 96 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 400935908025 + 114043991616 = 633195^2 + 337704^2 .

It is not a de Polignac number, because 514979899641 - 2¹ = 514979899639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 514979899641.

It is not an unprimeable number, because it can be changed into a prime (514979899649) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36591636 + ... + 36605706.

Almost surely, 2^514979899641 is an apocalyptic number.

514979899641 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

514979899641 is the 717621-st square number.

514979899641 is the 358811-st centered octagonal number.

It is an amenable number.

514979899641 is a deficient number, since it is larger than the sum of its proper divisors (275266488342).

514979899641 is an frugal number, since it uses more digits than its factorization.

514979899641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28182 (or 14091 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 72.

The spelling of 514979899641 in words is "five hundred fourteen billion, nine hundred seventy-nine million, eight hundred ninety-nine thousand, six hundred forty-one".