26404453739 has 2 divisors, whose sum is σ = 26404453740. Its totient is φ = 26404453738.

The previous prime is 26404453693. The next prime is 26404453769. The reversal of 26404453739 is 93735440462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26404453739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26404453693 and 26404453702.

It is not a weakly prime, because it can be changed into another prime (26404453769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13202226869 + 13202226870.

It is an arithmetic number, because the mean of its divisors is an integer number (13202226870).

Almost surely, 2^26404453739 is an apocalyptic number.

26404453739 is a deficient number, since it is larger than the sum of its proper divisors (1).

26404453739 is an equidigital number, since it uses as much as digits as its factorization.

26404453739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 26404453739 in words is "twenty-six billion, four hundred four million, four hundred fifty-three thousand, seven hundred thirty-nine".