25828062840 has 256 divisors, whose sum is σ = 88346764800. Its totient is φ = 6709588992.

The previous prime is 25828062823. The next prime is 25828062859. The reversal of 25828062840 is 4826082852.

25828062840 is a `hidden beast` number, since 2 + 582 + 8 + 0 + 6 + 28 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6541747 + ... + 6545693.

It is an arithmetic number, because the mean of its divisors is an integer number (345104550).

Almost surely, 2^25828062840 is an apocalyptic number.

25828062840 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 25828062840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44173382400).

25828062840 is an abundant number, since it is smaller than the sum of its proper divisors (62518701960).

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

25828062840 is a wasteful number, since it uses less digits than its factorization.

25828062840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123 (or 4113 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 25828062840 in words is "twenty-five billion, eight hundred twenty-eight million, sixty-two thousand, eight hundred forty".