2542695813 has 32 divisors (see below), whose sum is σ = 4308377600. Its totient is φ = 1451860848.

The previous prime is 2542695809. The next prime is 2542695821. The reversal of 2542695813 is 3185962452.

2542695813 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 69 + 581 + 3 = 666.

It is not a de Polignac number, because 2542695813 - 2² = 2542695809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542695013) 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 31 ways as a sum of consecutive naturals, for example, 287268 + ... + 295986.

It is an arithmetic number, because the mean of its divisors is an integer number (134636800).

Almost surely, 2^2542695813 is an apocalyptic number.

It is an amenable number.

2542695813 is a deficient number, since it is larger than the sum of its proper divisors (1765681787).

2542695813 is a wasteful number, since it uses less digits than its factorization.

2542695813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10278 (or 10272 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 2542695813 is about 50425.1505996760. The cubic root of 2542695813 is about 1364.8915213877.

The spelling of 2542695813 in words is "two billion, five hundred forty-two million, six hundred ninety-five thousand, eight hundred thirteen".