26123581770379 has 2 divisors, whose sum is σ = 26123581770380. Its totient is φ = 26123581770378.

The previous prime is 26123581770329. The next prime is 26123581770487. The reversal of 26123581770379 is 97307718532162.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26123581770379 is a prime.

It is not a weakly prime, because it can be changed into another prime (26123581770329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13061790885189 + 13061790885190.

It is an arithmetic number, because the mean of its divisors is an integer number (13061790885190).

Almost surely, 2^{26123581770379} is an apocalyptic number.

26123581770379 is a deficient number, since it is larger than the sum of its proper divisors (1).

26123581770379 is an equidigital number, since it uses as much as digits as its factorization.

26123581770379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26671680, while the sum is 61.

The spelling of 26123581770379 in words is "twenty-six trillion, one hundred twenty-three billion, five hundred eighty-one million, seven hundred seventy thousand, three hundred seventy-nine".