25807099142 has 16 divisors (see below), whose sum is σ = 43371145872. Its totient is φ = 11413458720.

The previous prime is 25807099141. The next prime is 25807099151. The reversal of 25807099142 is 24199070852.

It is a super-2 number, since 2×25807099142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25807099141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15851213 + ... + 15852840.

It is an arithmetic number, because the mean of its divisors is an integer number (2710696617).

Almost surely, 2^25807099142 is an apocalyptic number.

25807099142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25807099142 is a deficient number, since it is larger than the sum of its proper divisors (17564046730).

25807099142 is a wasteful number, since it uses less digits than its factorization.

25807099142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31704103.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 25807099142 in words is "twenty-five billion, eight hundred seven million, ninety-nine thousand, one hundred forty-two".