25870143840 has 192 divisors, whose sum is σ = 83138420736. Its totient is φ = 6760599552.

The previous prime is 25870143809. The next prime is 25870143851. The reversal of 25870143840 is 4834107852.

It is a junction number, because it is equal to n+sod(n) for n = 25870143792 and 25870143801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5057124 + ... + 5062236.

It is an arithmetic number, because the mean of its divisors is an integer number (433012608).

Almost surely, 2^25870143840 is an apocalyptic number.

25870143840 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 25870143840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41569210368).

25870143840 is an abundant number, since it is smaller than the sum of its proper divisors (57268276896).

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

25870143840 is a wasteful number, since it uses less digits than its factorization.

25870143840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341 (or 5333 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 25870143840 in words is "twenty-five billion, eight hundred seventy million, one hundred forty-three thousand, eight hundred forty".