25746787528 has 48 divisors (see below), whose sum is σ = 60643275840. Its totient is φ = 10031213280.

The previous prime is 25746787513. The next prime is 25746787571. The reversal of 25746787528 is 82578764752.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1893076 + ... + 1906627.

It is an arithmetic number, because the mean of its divisors is an integer number (1263401580).

Almost surely, 2^25746787528 is an apocalyptic number.

25746787528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25746787528 is an abundant number, since it is smaller than the sum of its proper divisors (34896488312).

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

25746787528 is a wasteful number, since it uses less digits than its factorization.

25746787528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799738 (or 3799723 counting only the distinct ones).

The product of its digits is 52684800, while the sum is 61.

The spelling of 25746787528 in words is "twenty-five billion, seven hundred forty-six million, seven hundred eighty-seven thousand, five hundred twenty-eight".