26994742455 has 16 divisors (see below), whose sum is σ = 43194372480. Its totient is φ = 14396267808.

The previous prime is 26994742417. The next prime is 26994742477. The reversal of 26994742455 is 55424749962.

It is not a de Polignac number, because 26994742455 - 2²⁰ = 26993693879 is a prime.

It is a super-2 number, since 2×26994742455² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26994742395 and 26994742404.

It is a congruent number.

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, 227856 + ... + 325434.

It is an arithmetic number, because the mean of its divisors is an integer number (2699648280).

Almost surely, 2^26994742455 is an apocalyptic number.

26994742455 is a deficient number, since it is larger than the sum of its proper divisors (16199630025).

26994742455 is a wasteful number, since it uses less digits than its factorization.

26994742455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116030.

The product of its digits is 21772800, while the sum is 57.

The spelling of 26994742455 in words is "twenty-six billion, nine hundred ninety-four million, seven hundred forty-two thousand, four hundred fifty-five".