61332105019 has 2 divisors, whose sum is σ = 61332105020. Its totient is φ = 61332105018.

The previous prime is 61332105007. The next prime is 61332105053. The reversal of 61332105019 is 91050123316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61332105019 - 2¹⁷ = 61331973947 is a prime.

It is a super-2 number, since 2×61332105019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61332105719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666052509 + 30666052510.

It is an arithmetic number, because the mean of its divisors is an integer number (30666052510).

Almost surely, 2^61332105019 is an apocalyptic number.

61332105019 is a deficient number, since it is larger than the sum of its proper divisors (1).

61332105019 is an equidigital number, since it uses as much as digits as its factorization.

61332105019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 61332105019 in words is "sixty-one billion, three hundred thirty-two million, one hundred five thousand, nineteen".