25278260763 has 48 divisors (see below), whose sum is σ = 40698456576. Its totient is φ = 13669274880.

The previous prime is 25278260759. The next prime is 25278260783. The reversal of 25278260763 is 36706287252.

It is a happy number.

It is not a de Polignac number, because 25278260763 - 2² = 25278260759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25278260713) 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 47 ways as a sum of consecutive naturals, for example, 11696403 + ... + 11698563.

It is an arithmetic number, because the mean of its divisors is an integer number (847884512).

Almost surely, 2^25278260763 is an apocalyptic number.

25278260763 is a deficient number, since it is larger than the sum of its proper divisors (15420195813).

25278260763 is a wasteful number, since it uses less digits than its factorization.

25278260763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 25278260763 in words is "twenty-five billion, two hundred seventy-eight million, two hundred sixty thousand, seven hundred sixty-three".