25377261372 has 36 divisors (see below), whose sum is σ = 64155513240. Its totient is φ = 8458106592.

The previous prime is 25377261361. The next prime is 25377261397. The reversal of 25377261372 is 27316277352.

It is a happy number.

25377261372 is a `hidden beast` number, since 25 + 3 + 7 + 7 + 2 + 613 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316954 + ... + 388862.

It is an arithmetic number, because the mean of its divisors is an integer number (1782097590).

Almost surely, 2^25377261372 is an apocalyptic number.

It is an amenable number.

25377261372 is an abundant number, since it is smaller than the sum of its proper divisors (38778251868).

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

25377261372 is a wasteful number, since it uses less digits than its factorization.

25377261372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81722 (or 81717 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The spelling of 25377261372 in words is "twenty-five billion, three hundred seventy-seven million, two hundred sixty-one thousand, three hundred seventy-two".