26407855349 has 2 divisors, whose sum is σ = 26407855350. Its totient is φ = 26407855348.

The previous prime is 26407855291. The next prime is 26407855379. The reversal of 26407855349 is 94355870462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16797974449 + 9609880900 = 129607^2 + 98030^2 .

It is a cyclic number.

It is not a de Polignac number, because 26407855349 - 2⁸ = 26407855093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26407855349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26407855379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13203927674 + 13203927675.

It is an arithmetic number, because the mean of its divisors is an integer number (13203927675).

Almost surely, 2^26407855349 is an apocalyptic number.

It is an amenable number.

26407855349 is a deficient number, since it is larger than the sum of its proper divisors (1).

26407855349 is an equidigital number, since it uses as much as digits as its factorization.

26407855349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 26407855349 in words is "twenty-six billion, four hundred seven million, eight hundred fifty-five thousand, three hundred forty-nine".