25970977716540 has 48 divisors (see below), whose sum is σ = 72905675300640. Its totient is φ = 6907790467840.

The previous prime is 25970977716529. The next prime is 25970977716569. The reversal of 25970977716540 is 4561777907952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556338651 + ... + 556385330.

It is an arithmetic number, because the mean of its divisors is an integer number (1518868235430).

Almost surely, 2^{25970977716540} is an apocalyptic number.

25970977716540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25970977716540 is an abundant number, since it is smaller than the sum of its proper divisors (46934697584100).

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

25970977716540 is a wasteful number, since it uses less digits than its factorization.

25970977716540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112724382 (or 1112724380 counting only the distinct ones).

The product of its (nonzero) digits is 233377200, while the sum is 69.

The spelling of 25970977716540 in words is "twenty-five trillion, nine hundred seventy billion, nine hundred seventy-seven million, seven hundred sixteen thousand, five hundred forty".