26402043547 has 24 divisors (see below), whose sum is σ = 29337363440. Its totient is φ = 23740516800.

The previous prime is 26402043509. The next prime is 26402043581. The reversal of 26402043547 is 74534020462.

It is not a de Polignac number, because 26402043547 - 2⁷ = 26402043419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26402443547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9666172 + ... + 9668902.

Almost surely, 2^26402043547 is an apocalyptic number.

26402043547 is a deficient number, since it is larger than the sum of its proper divisors (2935319893).

26402043547 is a wasteful number, since it uses less digits than its factorization.

26402043547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595 (or 3584 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 26402043547 in words is "twenty-six billion, four hundred two million, forty-three thousand, five hundred forty-seven".