27245144451 has 8 divisors (see below), whose sum is σ = 41516410624. Its totient is φ = 15568653960.

The previous prime is 27245144447. The next prime is 27245144483. The reversal of 27245144451 is 15444154272.

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

It is not a de Polignac number, because 27245144451 - 2² = 27245144447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27245144051) 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, 648693895 + ... + 648693936.

It is an arithmetic number, because the mean of its divisors is an integer number (5189551328).

Almost surely, 2^27245144451 is an apocalyptic number.

27245144451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27245144451 is a deficient number, since it is larger than the sum of its proper divisors (14271266173).

27245144451 is a wasteful number, since it uses less digits than its factorization.

27245144451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297387841.

The product of its digits is 179200, while the sum is 39.

The spelling of 27245144451 in words is "twenty-seven billion, two hundred forty-five million, one hundred forty-four thousand, four hundred fifty-one".