26421275155 has 16 divisors (see below), whose sum is σ = 34606069344. Its totient is φ = 19205351680.

The previous prime is 26421275149. The next prime is 26421275161. The reversal of 26421275155 is 55157212462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26421275149) and next prime (26421275161).

It is not a de Polignac number, because 26421275155 - 2³ = 26421275147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20344 + ... + 230773.

It is an arithmetic number, because the mean of its divisors is an integer number (2162879334).

Almost surely, 2^26421275155 is an apocalyptic number.

26421275155 is a deficient number, since it is larger than the sum of its proper divisors (8184794189).

26421275155 is a wasteful number, since it uses less digits than its factorization.

26421275155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253046.

The product of its digits is 168000, while the sum is 40.

The spelling of 26421275155 in words is "twenty-six billion, four hundred twenty-one million, two hundred seventy-five thousand, one hundred fifty-five".