47354381878369 has 2 divisors, whose sum is σ = 47354381878370. Its totient is φ = 47354381878368.

The previous prime is 47354381878361. The next prime is 47354381878469. The reversal of 47354381878369 is 96387818345374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45645968192400 + 1708413685969 = 6756180^2 + 1307063^2 .

It is a cyclic number.

It is not a de Polignac number, because 47354381878369 - 2³ = 47354381878361 is a prime.

It is a super-2 number, since 2×47354381878369² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47354381878295 and 47354381878304.

It is not a weakly prime, because it can be changed into another prime (47354381878361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23677190939184 + 23677190939185.

It is an arithmetic number, because the mean of its divisors is an integer number (23677190939185).

Almost surely, 2^{47354381878369} is an apocalyptic number.

It is an amenable number.

47354381878369 is a deficient number, since it is larger than the sum of its proper divisors (1).

47354381878369 is an equidigital number, since it uses as much as digits as its factorization.

47354381878369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2926264320, while the sum is 76.

The spelling of 47354381878369 in words is "forty-seven trillion, three hundred fifty-four billion, three hundred eighty-one million, eight hundred seventy-eight thousand, three hundred sixty-nine".