47155447319 has 2 divisors, whose sum is σ = 47155447320. Its totient is φ = 47155447318.

The previous prime is 47155447307. The next prime is 47155447429. The reversal of 47155447319 is 91374455174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47155447319 - 2²⁰ = 47154398743 is a prime.

It is a super-2 number, since 2×47155447319² (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 (47155447019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23577723659 + 23577723660.

It is an arithmetic number, because the mean of its divisors is an integer number (23577723660).

Almost surely, 2^47155447319 is an apocalyptic number.

47155447319 is a deficient number, since it is larger than the sum of its proper divisors (1).

47155447319 is an equidigital number, since it uses as much as digits as its factorization.

47155447319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 50.

The spelling of 47155447319 in words is "forty-seven billion, one hundred fifty-five million, four hundred forty-seven thousand, three hundred nineteen".