26948729331 has 6 divisors (see below), whose sum is σ = 38925942380. Its totient is φ = 17965819548.

The previous prime is 26948729329. The next prime is 26948729351. The reversal of 26948729331 is 13392784962.

26948729331 is a `hidden beast` number, since 269 + 48 + 7 + 2 + 9 + 331 = 666.

It is not a de Polignac number, because 26948729331 - 2¹ = 26948729329 is a prime.

It is a super-2 number, since 2×26948729331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26948729351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1497151621 + ... + 1497151638.

Almost surely, 2^26948729331 is an apocalyptic number.

26948729331 is a deficient number, since it is larger than the sum of its proper divisors (11977213049).

26948729331 is a wasteful number, since it uses less digits than its factorization.

26948729331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994303265 (or 2994303262 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

It can be divided in two parts, 2694 and 8729331, that added together give a square (8732025 = 2955²).

The spelling of 26948729331 in words is "twenty-six billion, nine hundred forty-eight million, seven hundred twenty-nine thousand, three hundred thirty-one".