26299428971 has 2 divisors, whose sum is σ = 26299428972. Its totient is φ = 26299428970.

The previous prime is 26299428931. The next prime is 26299428977. The reversal of 26299428971 is 17982499262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26299428971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26299428971.

It is not a weakly prime, because it can be changed into another prime (26299428977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13149714485 + 13149714486.

It is an arithmetic number, because the mean of its divisors is an integer number (13149714486).

Almost surely, 2^26299428971 is an apocalyptic number.

26299428971 is a deficient number, since it is larger than the sum of its proper divisors (1).

26299428971 is an equidigital number, since it uses as much as digits as its factorization.

26299428971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 26299428971 in words is "twenty-six billion, two hundred ninety-nine million, four hundred twenty-eight thousand, nine hundred seventy-one".