2642526645 has 32 divisors (see below), whose sum is σ = 4761206784. Its totient is φ = 1239892800.

The previous prime is 2642526617. The next prime is 2642526673. The reversal of 2642526645 is 5466252462.

It is an interprime number because it is at equal distance from previous prime (2642526617) and next prime (2642526673).

It is not a de Polignac number, because 2642526645 - 2⁶ = 2642526581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2642526597 and 2642526606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253197 + ... + 263426.

It is an arithmetic number, because the mean of its divisors is an integer number (148787712).

Almost surely, 2^2642526645 is an apocalyptic number.

It is an amenable number.

2642526645 is a deficient number, since it is larger than the sum of its proper divisors (2118680139).

2642526645 is a wasteful number, since it uses less digits than its factorization.

2642526645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516673.

The product of its digits is 691200, while the sum is 42.

The square root of 2642526645 is about 51405.5118153686. The cubic root of 2642526645 is about 1382.5254192118.

The spelling of 2642526645 in words is "two billion, six hundred forty-two million, five hundred twenty-six thousand, six hundred forty-five".