38827977971 has 2 divisors, whose sum is σ = 38827977972. Its totient is φ = 38827977970.

The previous prime is 38827977961. The next prime is 38827978003. The reversal of 38827977971 is 17977972883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38827977971 - 2²² = 38823783667 is a prime.

It is a super-2 number, since 2×38827977971² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38827977901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19413988985 + 19413988986.

It is an arithmetic number, because the mean of its divisors is an integer number (19413988986).

Almost surely, 2^38827977971 is an apocalyptic number.

38827977971 is a deficient number, since it is larger than the sum of its proper divisors (1).

38827977971 is an equidigital number, since it uses as much as digits as its factorization.

38827977971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74680704, while the sum is 68.

The spelling of 38827977971 in words is "thirty-eight billion, eight hundred twenty-seven million, nine hundred seventy-seven thousand, nine hundred seventy-one".