2501678782 has 4 divisors (see below), whose sum is σ = 3752518176. Its totient is φ = 1250839390.

The previous prime is 2501678693. The next prime is 2501678801. The reversal of 2501678782 is 2878761052.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 625419694 + ... + 625419697.

It is an arithmetic number, because the mean of its divisors is an integer number (938129544).

Almost surely, 2^2501678782 is an apocalyptic number.

2501678782 is a deficient number, since it is larger than the sum of its proper divisors (1250839394).

2501678782 is a wasteful number, since it uses less digits than its factorization.

2501678782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250839393.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 2501678782 is about 50016.7850026369. The cubic root of 2501678782 is about 1357.5125346846.

The spelling of 2501678782 in words is "two billion, five hundred one million, six hundred seventy-eight thousand, seven hundred eighty-two".