2512780939 has 4 divisors (see below), whose sum is σ = 2512921320. Its totient is φ = 2512640560.

The previous prime is 2512780909. The next prime is 2512780969. The reversal of 2512780939 is 9390872152.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2512780909) and next prime (2512780969).

It is a cyclic number.

It is not a de Polignac number, because 2512780939 - 2¹⁵ = 2512748171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512780909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38602 + ... + 80719.

It is an arithmetic number, because the mean of its divisors is an integer number (628230330).

Almost surely, 2^2512780939 is an apocalyptic number.

2512780939 is a deficient number, since it is larger than the sum of its proper divisors (140381).

2512780939 is a wasteful number, since it uses less digits than its factorization.

2512780939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140380.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 2512780939 is about 50127.6464538283. The cubic root of 2512780939 is about 1359.5177317934.

The spelling of 2512780939 in words is "two billion, five hundred twelve million, seven hundred eighty thousand, nine hundred thirty-nine".