25142661463 has 4 divisors (see below), whose sum is σ = 25261821208. Its totient is φ = 25023501720.

The previous prime is 25142661443. The next prime is 25142661469. The reversal of 25142661463 is 36416624152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25142661463 - 2²⁹ = 24605790551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142661469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59579556 + ... + 59579977.

It is an arithmetic number, because the mean of its divisors is an integer number (6315455302).

Almost surely, 2^25142661463 is an apocalyptic number.

25142661463 is a deficient number, since it is larger than the sum of its proper divisors (119159745).

25142661463 is a wasteful number, since it uses less digits than its factorization.

25142661463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119159744.

The product of its digits is 207360, while the sum is 40.

The spelling of 25142661463 in words is "twenty-five billion, one hundred forty-two million, six hundred sixty-one thousand, four hundred sixty-three".