26162661421 has 8 divisors (see below), whose sum is σ = 28180880000. Its totient is φ = 24145258032.

The previous prime is 26162661407. The next prime is 26162661433. The reversal of 26162661421 is 12416626162.

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

It is a cyclic number.

It is not a de Polignac number, because 26162661421 - 2¹⁷ = 26162530349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26162661491) 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, 136305 + ... + 266278.

It is an arithmetic number, because the mean of its divisors is an integer number (3522610000).

Almost surely, 2^26162661421 is an apocalyptic number.

It is an amenable number.

26162661421 is a deficient number, since it is larger than the sum of its proper divisors (2018218579).

26162661421 is a wasteful number, since it uses less digits than its factorization.

26162661421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407595.

The product of its digits is 41472, while the sum is 37.

The spelling of 26162661421 in words is "twenty-six billion, one hundred sixty-two million, six hundred sixty-one thousand, four hundred twenty-one".