25440710378 has 16 divisors (see below), whose sum is σ = 38389226400. Its totient is φ = 12644477616.

The previous prime is 25440710377. The next prime is 25440710401. The reversal of 25440710378 is 87301704452.

It is not an unprimeable number, because it can be changed into a prime (25440710377) 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, 248348 + ... + 335496.

It is an arithmetic number, because the mean of its divisors is an integer number (2399326650).

Almost surely, 2^25440710378 is an apocalyptic number.

25440710378 is a deficient number, since it is larger than the sum of its proper divisors (12948516022).

25440710378 is a wasteful number, since it uses less digits than its factorization.

25440710378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88021.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 25440710378 in words is "twenty-five billion, four hundred forty million, seven hundred ten thousand, three hundred seventy-eight".