26994742454 has 4 divisors (see below), whose sum is σ = 40492113684. Its totient is φ = 13497371226.

The previous prime is 26994742417. The next prime is 26994742477. The reversal of 26994742454 is 45424749962.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×26994742454² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26994742454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6748685612 + ... + 6748685615.

It is an arithmetic number, because the mean of its divisors is an integer number (10123028421).

Almost surely, 2^26994742454 is an apocalyptic number.

26994742454 is a deficient number, since it is larger than the sum of its proper divisors (13497371230).

26994742454 is a wasteful number, since it uses less digits than its factorization.

26994742454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497371229.

The product of its digits is 17418240, while the sum is 56.

The spelling of 26994742454 in words is "twenty-six billion, nine hundred ninety-four million, seven hundred forty-two thousand, four hundred fifty-four".