25729141536 has 192 divisors, whose sum is σ = 90278092800. Its totient is φ = 6964247808.

The previous prime is 25729141507. The next prime is 25729141541. The reversal of 25729141536 is 63514192752.

25729141536 is a `hidden beast` number, since 2 + 5 + 72 + 9 + 1 + 41 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25729141491 and 25729141500.

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, 2961 + ... + 226863.

It is an arithmetic number, because the mean of its divisors is an integer number (470198400).

Almost surely, 2^25729141536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25729141536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45139046400).

25729141536 is an abundant number, since it is smaller than the sum of its proper divisors (64548951264).

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

25729141536 is a wasteful number, since it uses less digits than its factorization.

25729141536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223948 (or 223934 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 25729141536 in words is "twenty-five billion, seven hundred twenty-nine million, one hundred forty-one thousand, five hundred thirty-six".