26478428141391 has 16 divisors (see below), whose sum is σ = 36125788638720. Its totient is φ = 17241680655360.

The previous prime is 26478428141383. The next prime is 26478428141411. The reversal of 26478428141391 is 19314182487462.

It is a happy number.

It is not a de Polignac number, because 26478428141391 - 2³ = 26478428141383 is a prime.

It is a super-2 number, since 2×26478428141391² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26478428141311) 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, 34477146 + ... + 35236776.

It is an arithmetic number, because the mean of its divisors is an integer number (2257861789920).

Almost surely, 2^{26478428141391} is an apocalyptic number.

26478428141391 is a deficient number, since it is larger than the sum of its proper divisors (9647360497329).

26478428141391 is a wasteful number, since it uses less digits than its factorization.

26478428141391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029886.

The product of its digits is 18579456, while the sum is 60.

The spelling of 26478428141391 in words is "twenty-six trillion, four hundred seventy-eight billion, four hundred twenty-eight million, one hundred forty-one thousand, three hundred ninety-one".