25144136424140 has 24 divisors (see below), whose sum is σ = 53798963596560. Its totient is φ = 9867887501888.

The previous prime is 25144136424139. The next prime is 25144136424181. The reversal of 25144136424140 is 4142463144152.

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, 11860440650 + ... + 11860442769.

It is an arithmetic number, because the mean of its divisors is an integer number (2241623483190).

Almost surely, 2^{25144136424140} is an apocalyptic number.

25144136424140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25144136424140 is an abundant number, since it is smaller than the sum of its proper divisors (28654827172420).

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

25144136424140 is a wasteful number, since it uses less digits than its factorization.

25144136424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23720883481 (or 23720883479 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

Adding to 25144136424140 its reverse (4142463144152), we get a palindrome (29286599568292).

The spelling of 25144136424140 in words is "twenty-five trillion, one hundred forty-four billion, one hundred thirty-six million, four hundred twenty-four thousand, one hundred forty".