61328393970343 has 2 divisors, whose sum is σ = 61328393970344. Its totient is φ = 61328393970342.

The previous prime is 61328393970331. The next prime is 61328393970367. The reversal of 61328393970343 is 34307939382316.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61328393970343 is a prime.

It is a super-2 number, since 2×61328393970343² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61328393970383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30664196985171 + 30664196985172.

It is an arithmetic number, because the mean of its divisors is an integer number (30664196985172).

Almost surely, 2^{61328393970343} is an apocalyptic number.

61328393970343 is a deficient number, since it is larger than the sum of its proper divisors (1).

61328393970343 is an equidigital number, since it uses as much as digits as its factorization.

61328393970343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 61.

The spelling of 61328393970343 in words is "sixty-one trillion, three hundred twenty-eight billion, three hundred ninety-three million, nine hundred seventy thousand, three hundred forty-three".