25691133691360 has 48 divisors (see below), whose sum is σ = 60695690168736. Its totient is φ = 10276387982848.

The previous prime is 25691133691357. The next prime is 25691133691361. The reversal of 25691133691360 is 6319633119652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25691133691361) 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, 30543957 + ... + 31373803.

It is an arithmetic number, because the mean of its divisors is an integer number (1264493545182).

Almost surely, 2^{25691133691360} is an apocalyptic number.

25691133691360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25691133691360 is an abundant number, since it is smaller than the sum of its proper divisors (35004556477376).

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

25691133691360 is a wasteful number, since it uses less digits than its factorization.

25691133691360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023355 (or 1023347 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 55.

The spelling of 25691133691360 in words is "twenty-five trillion, six hundred ninety-one billion, one hundred thirty-three million, six hundred ninety-one thousand, three hundred sixty".