25990126445 has 8 divisors (see below), whose sum is σ = 31653646944. Its totient is φ = 20481771024.

The previous prime is 25990126373. The next prime is 25990126531. The reversal of 25990126445 is 54462109952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25990126445 - 2¹⁸ = 25989864301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25990126445.

It is a congruent number.

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, 38790899 + ... + 38791568.

It is an arithmetic number, because the mean of its divisors is an integer number (3956705868).

Almost surely, 2^25990126445 is an apocalyptic number.

It is an amenable number.

25990126445 is a deficient number, since it is larger than the sum of its proper divisors (5663520499).

25990126445 is an equidigital number, since it uses as much as digits as its factorization.

25990126445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77582539.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 25990126445 in words is "twenty-five billion, nine hundred ninety million, one hundred twenty-six thousand, four hundred forty-five".