26011930949 has 2 divisors, whose sum is σ = 26011930950. Its totient is φ = 26011930948.

The previous prime is 26011930921. The next prime is 26011930963. The reversal of 26011930949 is 94903911062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13054662049 + 12957268900 = 114257^2 + 113830^2 .

It is a cyclic number.

It is not a de Polignac number, because 26011930949 - 2²⁴ = 25995153733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26011930969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13005965474 + 13005965475.

It is an arithmetic number, because the mean of its divisors is an integer number (13005965475).

Almost surely, 2^26011930949 is an apocalyptic number.

It is an amenable number.

26011930949 is a deficient number, since it is larger than the sum of its proper divisors (1).

26011930949 is an equidigital number, since it uses as much as digits as its factorization.

26011930949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 26011930949 in words is "twenty-six billion, eleven million, nine hundred thirty thousand, nine hundred forty-nine".