47667666769 has 2 divisors, whose sum is σ = 47667666770. Its totient is φ = 47667666768.

The previous prime is 47667666689. The next prime is 47667666799. The reversal of 47667666769 is 96766676674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45844376769 + 1823290000 = 214113^2 + 42700^2 .

It is a cyclic number.

It is not a de Polignac number, because 47667666769 - 2⁹ = 47667666257 is a prime.

It is a super-2 number, since 2×47667666769² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47667666698 and 47667666707.

It is not a weakly prime, because it can be changed into another prime (47667666799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23833833384 + 23833833385.

It is an arithmetic number, because the mean of its divisors is an integer number (23833833385).

Almost surely, 2^47667666769 is an apocalyptic number.

It is an amenable number.

47667666769 is a deficient number, since it is larger than the sum of its proper divisors (1).

47667666769 is an equidigital number, since it uses as much as digits as its factorization.

47667666769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576108288, while the sum is 70.

The spelling of 47667666769 in words is "forty-seven billion, six hundred sixty-seven million, six hundred sixty-six thousand, seven hundred sixty-nine".