25827343494 has 64 divisors (see below), whose sum is σ = 54491222016. Its totient is φ = 8144817824.

The previous prime is 25827343469. The next prime is 25827343541. The reversal of 25827343494 is 49434372852.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 13982479 + ... + 13984325.

It is an arithmetic number, because the mean of its divisors is an integer number (851425344).

Almost surely, 2^25827343494 is an apocalyptic number.

25827343494 is an abundant number, since it is smaller than the sum of its proper divisors (28663878522).

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

25827343494 is a wasteful number, since it uses less digits than its factorization.

25827343494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929.

The product of its digits is 5806080, while the sum is 51.

The spelling of 25827343494 in words is "twenty-five billion, eight hundred twenty-seven million, three hundred forty-three thousand, four hundred ninety-four".