27121407407 has 8 divisors (see below), whose sum is σ = 27875554512. Its totient is φ = 26368372800.

The previous prime is 27121407377. The next prime is 27121407409. The reversal of 27121407407 is 70470412172.

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

It is a cyclic number.

It is not a de Polignac number, because 27121407407 - 2⁶ = 27121407343 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 (27121407409) 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, 228569 + ... + 326322.

It is an arithmetic number, because the mean of its divisors is an integer number (3484444314).

Almost surely, 2^27121407407 is an apocalyptic number.

27121407407 is a deficient number, since it is larger than the sum of its proper divisors (754147105).

27121407407 is a wasteful number, since it uses less digits than its factorization.

27121407407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556249.

The product of its (nonzero) digits is 21952, while the sum is 35.

Adding to 27121407407 its reverse (70470412172), we get a palindrome (97591819579).

The spelling of 27121407407 in words is "twenty-seven billion, one hundred twenty-one million, four hundred seven thousand, four hundred seven".