26404146541 has 2 divisors, whose sum is σ = 26404146542. Its totient is φ = 26404146540.

The previous prime is 26404146539. The next prime is 26404146557. The reversal of 26404146541 is 14564140462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20725921225 + 5678225316 = 143965^2 + 75354^2 .

It is a cyclic number.

It is not a de Polignac number, because 26404146541 - 2¹ = 26404146539 is a prime.

Together with 26404146539, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26404146541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26404746541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13202073270 + 13202073271.

It is an arithmetic number, because the mean of its divisors is an integer number (13202073271).

Almost surely, 2^26404146541 is an apocalyptic number.

It is an amenable number.

26404146541 is a deficient number, since it is larger than the sum of its proper divisors (1).

26404146541 is an equidigital number, since it uses as much as digits as its factorization.

26404146541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 26404146541 in words is "twenty-six billion, four hundred four million, one hundred forty-six thousand, five hundred forty-one".