26891429854 has 8 divisors (see below), whose sum is σ = 41195382048. Its totient is φ = 13159635840.

The previous prime is 26891429819. The next prime is 26891429861. The reversal of 26891429854 is 45892419862.

It is a happy number.

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

It is a super-2 number, since 2×26891429854² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143039427 + ... + 143039614.

It is an arithmetic number, because the mean of its divisors is an integer number (5149422756).

Almost surely, 2^26891429854 is an apocalyptic number.

26891429854 is a deficient number, since it is larger than the sum of its proper divisors (14303952194).

26891429854 is a wasteful number, since it uses less digits than its factorization.

26891429854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286079090.

The product of its digits is 9953280, while the sum is 58.

The spelling of 26891429854 in words is "twenty-six billion, eight hundred ninety-one million, four hundred twenty-nine thousand, eight hundred fifty-four".