26420253473 has 8 divisors (see below), whose sum is σ = 26503582560. Its totient is φ = 26336966400.

The previous prime is 26420253443. The next prime is 26420253487. The reversal of 26420253473 is 37435202462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26420253473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26420253443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1658018 + ... + 1673876.

It is an arithmetic number, because the mean of its divisors is an integer number (3312947820).

Almost surely, 2^26420253473 is an apocalyptic number.

It is an amenable number.

26420253473 is a deficient number, since it is larger than the sum of its proper divisors (83329087).

26420253473 is a wasteful number, since it uses less digits than its factorization.

26420253473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21007.

The product of its (nonzero) digits is 241920, while the sum is 38.

The spelling of 26420253473 in words is "twenty-six billion, four hundred twenty million, two hundred fifty-three thousand, four hundred seventy-three".