47778994597 has 2 divisors, whose sum is σ = 47778994598. Its totient is φ = 47778994596.

The previous prime is 47778994589. The next prime is 47778994619. The reversal of 47778994597 is 79549987774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35109015876 + 12669978721 = 187374^2 + 112561^2 .

It is a cyclic number.

It is not a de Polignac number, because 47778994597 - 2³ = 47778994589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47778994517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23889497298 + 23889497299.

It is an arithmetic number, because the mean of its divisors is an integer number (23889497299).

Almost surely, 2^47778994597 is an apocalyptic number.

It is an amenable number.

47778994597 is a deficient number, since it is larger than the sum of its proper divisors (1).

47778994597 is an equidigital number, since it uses as much as digits as its factorization.

47778994597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120210560, while the sum is 76.

The spelling of 47778994597 in words is "forty-seven billion, seven hundred seventy-eight million, nine hundred ninety-four thousand, five hundred ninety-seven".