27628498007 has 4 divisors (see below), whose sum is σ = 30140179656. Its totient is φ = 25116816360.

The previous prime is 27628497997. The next prime is 27628498013. The reversal of 27628498007 is 70089482672.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27628498007 - 2⁴ = 27628497991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27628498007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27628498057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255840808 + ... + 1255840829.

It is an arithmetic number, because the mean of its divisors is an integer number (7535044914).

Almost surely, 2^27628498007 is an apocalyptic number.

27628498007 is a deficient number, since it is larger than the sum of its proper divisors (2511681649).

27628498007 is a wasteful number, since it uses less digits than its factorization.

27628498007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511681648.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 27628498007 in words is "twenty-seven billion, six hundred twenty-eight million, four hundred ninety-eight thousand, seven".