27977355699 has 16 divisors (see below), whose sum is σ = 37437340800. Its totient is φ = 18584519616.

The previous prime is 27977355677. The next prime is 27977355709. The reversal of 27977355699 is 99655377972.

It is not a de Polignac number, because 27977355699 - 2⁵ = 27977355667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27977355299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3318912 + ... + 3327330.

It is an arithmetic number, because the mean of its divisors is an integer number (2339833800).

Almost surely, 2^27977355699 is an apocalyptic number.

27977355699 is a deficient number, since it is larger than the sum of its proper divisors (9459985101).

27977355699 is a wasteful number, since it uses less digits than its factorization.

27977355699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274.

The product of its digits is 225042300, while the sum is 69.

The spelling of 27977355699 in words is "twenty-seven billion, nine hundred seventy-seven million, three hundred fifty-five thousand, six hundred ninety-nine".