8378751947 has 2 divisors, whose sum is σ = 8378751948. Its totient is φ = 8378751946.

The previous prime is 8378751877. The next prime is 8378751959. The reversal of 8378751947 is 7491578738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8378751947 - 2¹⁸ = 8378489803 is a prime.

It is not a weakly prime, because it can be changed into another prime (8378751547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189375973 + 4189375974.

It is an arithmetic number, because the mean of its divisors is an integer number (4189375974).

Almost surely, 2^8378751947 is an apocalyptic number.

8378751947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8378751947 is an equidigital number, since it uses as much as digits as its factorization.

8378751947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 59.

The square root of 8378751947 is about 91535.5228695396. The cubic root of 8378751947 is about 2031.0772629226.

The spelling of 8378751947 in words is "eight billion, three hundred seventy-eight million, seven hundred fifty-one thousand, nine hundred forty-seven".