26251562045 has 4 divisors (see below), whose sum is σ = 31501874460. Its totient is φ = 21001249632.

The previous prime is 26251562039. The next prime is 26251562083. The reversal of 26251562045 is 54026515262.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17008854724 + 9242707321 = 130418^2 + 96139^2 .

It is a cyclic number.

It is not a de Polignac number, because 26251562045 - 2¹⁸ = 26251299901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625156200 + ... + 2625156209.

It is an arithmetic number, because the mean of its divisors is an integer number (7875468615).

Almost surely, 2^26251562045 is an apocalyptic number.

It is an amenable number.

26251562045 is a deficient number, since it is larger than the sum of its proper divisors (5250312415).

26251562045 is an equidigital number, since it uses as much as digits as its factorization.

26251562045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250312414.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 26251562045 in words is "twenty-six billion, two hundred fifty-one million, five hundred sixty-two thousand, forty-five".