25440016078 has 8 divisors (see below), whose sum is σ = 40404731472. Its totient is φ = 11971772256.

The previous prime is 25440016073. The next prime is 25440016103. The reversal of 25440016078 is 87061004452.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25440016073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374117850 + ... + 374117917.

It is an arithmetic number, because the mean of its divisors is an integer number (5050591434).

Almost surely, 2^25440016078 is an apocalyptic number.

25440016078 is a deficient number, since it is larger than the sum of its proper divisors (14964715394).

25440016078 is a wasteful number, since it uses less digits than its factorization.

25440016078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748235786.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 25440016078 in words is "twenty-five billion, four hundred forty million, sixteen thousand, seventy-eight".