47777683819 has 2 divisors, whose sum is σ = 47777683820. Its totient is φ = 47777683818.

The previous prime is 47777683781. The next prime is 47777683829. The reversal of 47777683819 is 91838677774.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47777683819 is a prime.

It is a super-2 number, since 2×47777683819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47777683829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23888841909 + 23888841910.

It is an arithmetic number, because the mean of its divisors is an integer number (23888841910).

Almost surely, 2^47777683819 is an apocalyptic number.

47777683819 is a deficient number, since it is larger than the sum of its proper divisors (1).

47777683819 is an equidigital number, since it uses as much as digits as its factorization.

47777683819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99574272, while the sum is 67.

The spelling of 47777683819 in words is "forty-seven billion, seven hundred seventy-seven million, six hundred eighty-three thousand, eight hundred nineteen".