26470426891 has 16 divisors (see below), whose sum is σ = 27379195168. Its totient is φ = 25572153600.

The previous prime is 26470426883. The next prime is 26470426919. The reversal of 26470426891 is 19862407462.

It is a cyclic number.

It is not a de Polignac number, because 26470426891 - 2³ = 26470426883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26470426091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10498711 + ... + 10501231.

It is an arithmetic number, because the mean of its divisors is an integer number (1711199698).

Almost surely, 2^26470426891 is an apocalyptic number.

26470426891 is a deficient number, since it is larger than the sum of its proper divisors (908768277).

26470426891 is a wasteful number, since it uses less digits than its factorization.

26470426891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 26470426891 in words is "twenty-six billion, four hundred seventy million, four hundred twenty-six thousand, eight hundred ninety-one".