26974051445557 has 8 divisors (see below), whose sum is σ = 28147019700096. Its totient is φ = 25801098475152.

The previous prime is 26974051445543. The next prime is 26974051445567. The reversal of 26974051445557 is 75554415047962.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-26974051445557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26974051445567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139113 + ... + 7346254.

It is an arithmetic number, because the mean of its divisors is an integer number (3518377462512).

Almost surely, 2^{26974051445557} is an apocalyptic number.

It is an amenable number.

26974051445557 is a deficient number, since it is larger than the sum of its proper divisors (1172968254539).

26974051445557 is a wasteful number, since it uses less digits than its factorization.

26974051445557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642067.

The product of its (nonzero) digits is 211680000, while the sum is 64.

The spelling of 26974051445557 in words is "twenty-six trillion, nine hundred seventy-four billion, fifty-one million, four hundred forty-five thousand, five hundred fifty-seven".