25400127663 has 20 divisors (see below), whose sum is σ = 37970163000. Its totient is φ = 16921474992.

The previous prime is 25400127653. The next prime is 25400127673. The reversal of 25400127663 is 36672100452.

It is an interprime number because it is at equal distance from previous prime (25400127653) and next prime (25400127673).

It is not a de Polignac number, because 25400127663 - 2¹⁴ = 25400111279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400127653) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5713 + ... + 225461.

It is an arithmetic number, because the mean of its divisors is an integer number (1898508150).

Almost surely, 2^25400127663 is an apocalyptic number.

25400127663 is a deficient number, since it is larger than the sum of its proper divisors (12570035337).

25400127663 is a wasteful number, since it uses less digits than its factorization.

25400127663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221188 (or 221179 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 25400127663 in words is "twenty-five billion, four hundred million, one hundred twenty-seven thousand, six hundred sixty-three".