25735718623 has 2 divisors, whose sum is σ = 25735718624. Its totient is φ = 25735718622.

The previous prime is 25735718621. The next prime is 25735718627. The reversal of 25735718623 is 32681753752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25735718623 - 2¹ = 25735718621 is a prime.

It is a super-2 number, since 2×25735718623² (a number of 22 digits) contains 22 as substring.

Together with 25735718621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25735718621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12867859311 + 12867859312.

It is an arithmetic number, because the mean of its divisors is an integer number (12867859312).

Almost surely, 2^25735718623 is an apocalyptic number.

25735718623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25735718623 is an equidigital number, since it uses as much as digits as its factorization.

25735718623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 49.

The spelling of 25735718623 in words is "twenty-five billion, seven hundred thirty-five million, seven hundred eighteen thousand, six hundred twenty-three".