61582405319 has 2 divisors, whose sum is σ = 61582405320. Its totient is φ = 61582405318.

The previous prime is 61582405271. The next prime is 61582405333. The reversal of 61582405319 is 91350428516.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61582405319 - 2²⁰ = 61581356743 is a prime.

It is a super-2 number, since 2×61582405319² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61582405319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61582405399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30791202659 + 30791202660.

It is an arithmetic number, because the mean of its divisors is an integer number (30791202660).

Almost surely, 2^61582405319 is an apocalyptic number.

61582405319 is a deficient number, since it is larger than the sum of its proper divisors (1).

61582405319 is an equidigital number, since it uses as much as digits as its factorization.

61582405319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 61582405319 in words is "sixty-one billion, five hundred eighty-two million, four hundred five thousand, three hundred nineteen".