25421927834 has 8 divisors (see below), whose sum is σ = 38134844928. Its totient is φ = 12710312860.

The previous prime is 25421927827. The next prime is 25421927873. The reversal of 25421927834 is 43872912452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275162 + ... + 355749.

It is an arithmetic number, because the mean of its divisors is an integer number (4766855616).

Almost surely, 2^25421927834 is an apocalyptic number.

25421927834 is a deficient number, since it is larger than the sum of its proper divisors (12712917094).

25421927834 is a wasteful number, since it uses less digits than its factorization.

25421927834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651060.

The product of its digits is 967680, while the sum is 47.

The spelling of 25421927834 in words is "twenty-five billion, four hundred twenty-one million, nine hundred twenty-seven thousand, eight hundred thirty-four".