47878215799 has 2 divisors, whose sum is σ = 47878215800. Its totient is φ = 47878215798.

The previous prime is 47878215787. The next prime is 47878215823. The reversal of 47878215799 is 99751287874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47878215799 is a prime.

It is a super-2 number, since 2×47878215799² (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 (47878215709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23939107899 + 23939107900.

It is an arithmetic number, because the mean of its divisors is an integer number (23939107900).

Almost surely, 2^47878215799 is an apocalyptic number.

47878215799 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878215799 is an equidigital number, since it uses as much as digits as its factorization.

47878215799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71124480, while the sum is 67.

The spelling of 47878215799 in words is "forty-seven billion, eight hundred seventy-eight million, two hundred fifteen thousand, seven hundred ninety-nine".