25677231078 has 32 divisors (see below), whose sum is σ = 51455969280. Its totient is φ = 8542180160.

The previous prime is 25677231077. The next prime is 25677231079. The reversal of 25677231078 is 87013277652.

It is an interprime number because it is at equal distance from previous prime (25677231077) and next prime (25677231079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25677231071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9470143 + ... + 9472853.

It is an arithmetic number, because the mean of its divisors is an integer number (1607999040).

Almost surely, 2^25677231078 is an apocalyptic number.

25677231078 is an abundant number, since it is smaller than the sum of its proper divisors (25778738202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25677231078 is a wasteful number, since it uses less digits than its factorization.

25677231078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 25677231078 in words is "twenty-five billion, six hundred seventy-seven million, two hundred thirty-one thousand, seventy-eight".