25928937216 has 810 divisors, whose sum is σ = 98033792472. Its totient is φ = 6793113600.

The previous prime is 25928937193. The next prime is 25928937241. The reversal of 25928937216 is 61273982952.

25928937216 is a `hidden beast` number, since 2 + 592 + 8 + 9 + 37 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 171714741 + ... + 171714891.

Almost surely, 2^25928937216 is an apocalyptic number.

25928937216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25928937216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49016896236).

25928937216 is an abundant number, since it is smaller than the sum of its proper divisors (72104855256).

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

25928937216 is a wasteful number, since it uses less digits than its factorization.

25928937216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 176 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 25928937216 in words is "twenty-five billion, nine hundred twenty-eight million, nine hundred thirty-seven thousand, two hundred sixteen".