61535158219 has 2 divisors, whose sum is σ = 61535158220. Its totient is φ = 61535158218.

The previous prime is 61535158183. The next prime is 61535158273. The reversal of 61535158219 is 91285153516.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61535158219 is a prime.

It is a super-2 number, since 2×61535158219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61535150219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30767579109 + 30767579110.

It is an arithmetic number, because the mean of its divisors is an integer number (30767579110).

Almost surely, 2^61535158219 is an apocalyptic number.

61535158219 is a deficient number, since it is larger than the sum of its proper divisors (1).

61535158219 is an equidigital number, since it uses as much as digits as its factorization.

61535158219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 46.

The spelling of 61535158219 in words is "sixty-one billion, five hundred thirty-five million, one hundred fifty-eight thousand, two hundred nineteen".