25900016034691 has 2 divisors, whose sum is σ = 25900016034692. Its totient is φ = 25900016034690.

The previous prime is 25900016034649. The next prime is 25900016034721. The reversal of 25900016034691 is 19643061000952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25900016034691 - 2²⁵ = 25899982480259 is a prime.

It is a super-2 number, since 2×25900016034691² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25900016034631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12950008017345 + 12950008017346.

It is an arithmetic number, because the mean of its divisors is an integer number (12950008017346).

Almost surely, 2^{25900016034691} is an apocalyptic number.

25900016034691 is a deficient number, since it is larger than the sum of its proper divisors (1).

25900016034691 is an equidigital number, since it uses as much as digits as its factorization.

25900016034691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 25900016034691 in words is "twenty-five trillion, nine hundred billion, sixteen million, thirty-four thousand, six hundred ninety-one".