47866912669 has 2 divisors, whose sum is σ = 47866912670. Its totient is φ = 47866912668.

The previous prime is 47866912637. The next prime is 47866912721. The reversal of 47866912669 is 96621966874.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38656671769 + 9210240900 = 196613^2 + 95970^2 .

It is a cyclic number.

It is not a de Polignac number, because 47866912669 - 2⁵ = 47866912637 is a prime.

It is a super-2 number, since 2×47866912669² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47866912669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47866912609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23933456334 + 23933456335.

It is an arithmetic number, because the mean of its divisors is an integer number (23933456335).

Almost surely, 2^47866912669 is an apocalyptic number.

It is an amenable number.

47866912669 is a deficient number, since it is larger than the sum of its proper divisors (1).

47866912669 is an equidigital number, since it uses as much as digits as its factorization.

47866912669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 64.

The spelling of 47866912669 in words is "forty-seven billion, eight hundred sixty-six million, nine hundred twelve thousand, six hundred sixty-nine".