62790837561 has 27 divisors (see below), whose sum is σ = 91715667823. Its totient is φ = 41395981200.

The previous prime is 62790837539. The next prime is 62790837587. The reversal of 62790837561 is 16573809726.

The square root of 62790837561 is 250581.

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

62790837561 is a `hidden beast` number, since 6 + 2 + 79 + 0 + 8 + 3 + 7 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60328693161 + 2462144400 = 245619^2 + 49620^2 .

It is not a de Polignac number, because 62790837561 - 2¹⁹ = 62790313273 is a prime.

It is a super-2 number, since 2×62790837561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 62790837498 and 62790837507.

It is not an unprimeable number, because it can be changed into a prime (62790837521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 75925630 + ... + 75926456.

Almost surely, 2^62790837561 is an apocalyptic number.

62790837561 is the 250581-st square number.

62790837561 is the 125291-st centered octagonal number.

It is an amenable number.

62790837561 is a deficient number, since it is larger than the sum of its proper divisors (28924830262).

62790837561 is an frugal number, since it uses more digits than its factorization.

62790837561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 62790837561 in words is "sixty-two billion, seven hundred ninety million, eight hundred thirty-seven thousand, five hundred sixty-one".