25848784940 has 24 divisors (see below), whose sum is σ = 59217216912. Its totient is φ = 9399558080.

The previous prime is 25848784889. The next prime is 25848784961. The reversal of 25848784940 is 4948784852.

It is a super-3 number, since 3×25848784940³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25848784940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58747019 + ... + 58747458.

It is an arithmetic number, because the mean of its divisors is an integer number (2467384038).

Almost surely, 2^25848784940 is an apocalyptic number.

25848784940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25848784940 is an abundant number, since it is smaller than the sum of its proper divisors (33368431972).

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

25848784940 is a wasteful number, since it uses less digits than its factorization.

25848784940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117494497 (or 117494495 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 25848784940 in words is "twenty-five billion, eight hundred forty-eight million, seven hundred eighty-four thousand, nine hundred forty".