2542932761 has 8 divisors (see below), whose sum is σ = 2562717960. Its totient is φ = 2523165568.

The previous prime is 2542932751. The next prime is 2542932793. The reversal of 2542932761 is 1672392452.

It can be written as a sum of positive squares in 4 ways, for example, as 2065248025 + 477684736 = 45445^2 + 21856^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542932761 is a prime.

It is a super-3 number, since 3×2542932761³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2542932731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461555 + ... + 467031.

It is an arithmetic number, because the mean of its divisors is an integer number (320339745).

Almost surely, 2^2542932761 is an apocalyptic number.

It is an amenable number.

2542932761 is a deficient number, since it is larger than the sum of its proper divisors (19785199).

2542932761 is a wasteful number, since it uses less digits than its factorization.

2542932761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9003.

The product of its digits is 181440, while the sum is 41.

The square root of 2542932761 is about 50427.5000470973. The cubic root of 2542932761 is about 1364.9339171092.

The spelling of 2542932761 in words is "two billion, five hundred forty-two million, nine hundred thirty-two thousand, seven hundred sixty-one".