25948630620 has 144 divisors (see below), whose sum is σ = 85934066400. Its totient is φ = 6285619200.

The previous prime is 25948630571. The next prime is 25948630621. The reversal of 25948630620 is 2603684952.

25948630620 is a `hidden beast` number, since 2 + 5 + 9 + 4 + 8 + 630 + 6 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25948630621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2927956 + ... + 2936804.

It is an arithmetic number, because the mean of its divisors is an integer number (596764350).

Almost surely, 2^25948630620 is an apocalyptic number.

25948630620 is a gapful number since it is divisible by the number (20) 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 25948630620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42967033200).

25948630620 is an abundant number, since it is smaller than the sum of its proper divisors (59985435780).

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

25948630620 is a wasteful number, since it uses less digits than its factorization.

25948630620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356 (or 10351 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 25948630620 in words is "twenty-five billion, nine hundred forty-eight million, six hundred thirty thousand, six hundred twenty".