25366440142 has 16 divisors (see below), whose sum is σ = 38983853664. Its totient is φ = 12371920000.

The previous prime is 25366440137. The next prime is 25366440179. The reversal of 25366440142 is 24104466352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592767 + ... + 634117.

It is an arithmetic number, because the mean of its divisors is an integer number (2436490854).

Almost surely, 2^25366440142 is an apocalyptic number.

25366440142 is a deficient number, since it is larger than the sum of its proper divisors (13617413522).

25366440142 is a wasteful number, since it uses less digits than its factorization.

25366440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48875.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 25366440142 in words is "twenty-five billion, three hundred sixty-six million, four hundred forty thousand, one hundred forty-two".