25870780716 has 24 divisors (see below), whose sum is σ = 65852896704. Its totient is φ = 7839630480.

The previous prime is 25870780687. The next prime is 25870780717. The reversal of 25870780716 is 61708707852.

It is not an unprimeable number, because it can be changed into a prime (25870780717) 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, 97995250 + ... + 97995513.

It is an arithmetic number, because the mean of its divisors is an integer number (2743870696).

Almost surely, 2^25870780716 is an apocalyptic number.

It is an amenable number.

25870780716 is an abundant number, since it is smaller than the sum of its proper divisors (39982115988).

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

25870780716 is a wasteful number, since it uses less digits than its factorization.

25870780716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195990781 (or 195990779 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 51.

The spelling of 25870780716 in words is "twenty-five billion, eight hundred seventy million, seven hundred eighty thousand, seven hundred sixteen".