26103498787 has 2 divisors, whose sum is σ = 26103498788. Its totient is φ = 26103498786.

The previous prime is 26103498769. The next prime is 26103498791. The reversal of 26103498787 is 78789430162.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26103498787 is a prime.

It is not a weakly prime, because it can be changed into another prime (26103498287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13051749393 + 13051749394.

It is an arithmetic number, because the mean of its divisors is an integer number (13051749394).

Almost surely, 2^26103498787 is an apocalyptic number.

26103498787 is a deficient number, since it is larger than the sum of its proper divisors (1).

26103498787 is an equidigital number, since it uses as much as digits as its factorization.

26103498787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 26103498787 in words is "twenty-six billion, one hundred three million, four hundred ninety-eight thousand, seven hundred eighty-seven".