47878894573 has 2 divisors, whose sum is σ = 47878894574. Its totient is φ = 47878894572.

The previous prime is 47878894529. The next prime is 47878894579. The reversal of 47878894573 is 37549887874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41256515689 + 6622378884 = 203117^2 + 81378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47878894573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47878894579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23939447286 + 23939447287.

It is an arithmetic number, because the mean of its divisors is an integer number (23939447287).

Almost surely, 2^47878894573 is an apocalyptic number.

It is an amenable number.

47878894573 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878894573 is an equidigital number, since it uses as much as digits as its factorization.

47878894573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 379330560, while the sum is 70.

The spelling of 47878894573 in words is "forty-seven billion, eight hundred seventy-eight million, eight hundred ninety-four thousand, five hundred seventy-three".