47155790369 has 2 divisors, whose sum is σ = 47155790370. Its totient is φ = 47155790368.

The previous prime is 47155790333. The next prime is 47155790371. The reversal of 47155790369 is 96309755174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32347821025 + 14807969344 = 179855^2 + 121688^2 .

It is a cyclic number.

It is not a de Polignac number, because 47155790369 - 2⁸ = 47155790113 is a prime.

It is a super-2 number, since 2×47155790369² (a number of 22 digits) contains 22 as substring.

Together with 47155790371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47155790069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23577895184 + 23577895185.

It is an arithmetic number, because the mean of its divisors is an integer number (23577895185).

Almost surely, 2^47155790369 is an apocalyptic number.

It is an amenable number.

47155790369 is a deficient number, since it is larger than the sum of its proper divisors (1).

47155790369 is an equidigital number, since it uses as much as digits as its factorization.

47155790369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7144200, while the sum is 56.

The spelling of 47155790369 in words is "forty-seven billion, one hundred fifty-five million, seven hundred ninety thousand, three hundred sixty-nine".