27238664715 has 48 divisors (see below), whose sum is σ = 46948896000. Its totient is φ = 13480015360.

The previous prime is 27238664701. The next prime is 27238664723. The reversal of 27238664715 is 51746683272.

It is a happy number.

It is not a de Polignac number, because 27238664715 - 2⁷ = 27238664587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263536 + ... + 352034.

It is an arithmetic number, because the mean of its divisors is an integer number (978102000).

Almost surely, 2^27238664715 is an apocalyptic number.

27238664715 is a deficient number, since it is larger than the sum of its proper divisors (19710231285).

27238664715 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 27238664715 = (77268315426)₉.

27238664715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88612 (or 88595 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 27238664715 in words is "twenty-seven billion, two hundred thirty-eight million, six hundred sixty-four thousand, seven hundred fifteen".