25623043740 has 576 divisors, whose sum is σ = 98291128320. Its totient is φ = 5513840640.

The previous prime is 25623043709. The next prime is 25623043759. The reversal of 25623043740 is 4734032652.

25623043740 is a `hidden beast` number, since 2 + 56 + 230 + 4 + 374 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25623043695 and 25623043704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 43208884 + ... + 43209476.

It is an arithmetic number, because the mean of its divisors is an integer number (170644320).

Almost surely, 2^25623043740 is an apocalyptic number.

25623043740 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 25623043740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49145564160).

25623043740 is an abundant number, since it is smaller than the sum of its proper divisors (72668084580).

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

25623043740 is a wasteful number, since it uses less digits than its factorization.

25623043740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 25623043740 in words is "twenty-five billion, six hundred twenty-three million, forty-three thousand, seven hundred forty".