26420107787 has 2 divisors, whose sum is σ = 26420107788. Its totient is φ = 26420107786.

The previous prime is 26420107759. The next prime is 26420107799. The reversal of 26420107787 is 78770102462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26420107787 - 2¹⁰ = 26420106763 is a prime.

It is not a weakly prime, because it can be changed into another prime (26420127787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210053893 + 13210053894.

It is an arithmetic number, because the mean of its divisors is an integer number (13210053894).

Almost surely, 2^26420107787 is an apocalyptic number.

26420107787 is a deficient number, since it is larger than the sum of its proper divisors (1).

26420107787 is an equidigital number, since it uses as much as digits as its factorization.

26420107787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 26420107787 in words is "twenty-six billion, four hundred twenty million, one hundred seven thousand, seven hundred eighty-seven".