45147842219 has 2 divisors, whose sum is σ = 45147842220. Its totient is φ = 45147842218.

The previous prime is 45147842213. The next prime is 45147842231. The reversal of 45147842219 is 91224874154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45147842219 - 2¹² = 45147838123 is a prime.

It is a super-2 number, since 2×45147842219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45147842213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22573921109 + 22573921110.

It is an arithmetic number, because the mean of its divisors is an integer number (22573921110).

Almost surely, 2^45147842219 is an apocalyptic number.

45147842219 is a deficient number, since it is larger than the sum of its proper divisors (1).

45147842219 is an equidigital number, since it uses as much as digits as its factorization.

45147842219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 47.

The spelling of 45147842219 in words is "forty-five billion, one hundred forty-seven million, eight hundred forty-two thousand, two hundred nineteen".