25738352660 has 24 divisors (see below), whose sum is σ = 56895306720. Its totient is φ = 9753480864.

The previous prime is 25738352623. The next prime is 25738352677. The reversal of 25738352660 is 6625383752.

It is a super-3 number, since 3×25738352660³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33865874 + ... + 33866633.

It is an arithmetic number, because the mean of its divisors is an integer number (2370637780).

Almost surely, 2^25738352660 is an apocalyptic number.

25738352660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25738352660 is an abundant number, since it is smaller than the sum of its proper divisors (31156954060).

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

25738352660 is a wasteful number, since it uses less digits than its factorization.

25738352660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67732535 (or 67732533 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 25738352660 in words is "twenty-five billion, seven hundred thirty-eight million, three hundred fifty-two thousand, six hundred sixty".