47378566919 has 2 divisors, whose sum is σ = 47378566920. Its totient is φ = 47378566918.

The previous prime is 47378566897. The next prime is 47378566943. The reversal of 47378566919 is 91966587374.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47378566919 is a prime.

It is a super-2 number, since 2×47378566919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47378566969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23689283459 + 23689283460.

It is an arithmetic number, because the mean of its divisors is an integer number (23689283460).

Almost surely, 2^47378566919 is an apocalyptic number.

47378566919 is a deficient number, since it is larger than the sum of its proper divisors (1).

47378566919 is an equidigital number, since it uses as much as digits as its factorization.

47378566919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68584320, while the sum is 65.

The spelling of 47378566919 in words is "forty-seven billion, three hundred seventy-eight million, five hundred sixty-six thousand, nine hundred nineteen".