2492691555565 has 8 divisors (see below), whose sum is σ = 2991771691128. Its totient is φ = 1993792028160.

The previous prime is 2492691555559. The next prime is 2492691555587. The reversal of 2492691555565 is 5655551962942.

It can be written as a sum of positive squares in 4 ways, for example, as 394950659401 + 2097740896164 = 628451^2 + 1448358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2492691555565 - 2⁷ = 2492691555437 is a prime.

It is a super-2 number, since 2×2492691555565² (a number of 26 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 = 2492691555497 and 2492691555506.

It is a congruent number.

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, 45121672 + ... + 45176881.

It is an arithmetic number, because the mean of its divisors is an integer number (373971461391).

Almost surely, 2^{2492691555565} is an apocalyptic number.

It is an amenable number.

2492691555565 is a deficient number, since it is larger than the sum of its proper divisors (499080135563).

2492691555565 is an equidigital number, since it uses as much as digits as its factorization.

2492691555565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90304079.

The product of its digits is 145800000, while the sum is 64.

The spelling of 2492691555565 in words is "two trillion, four hundred ninety-two billion, six hundred ninety-one million, five hundred fifty-five thousand, five hundred sixty-five".