61324442279 has 2 divisors, whose sum is σ = 61324442280. Its totient is φ = 61324442278.

The previous prime is 61324442273. The next prime is 61324442419. The reversal of 61324442279 is 97224442316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61324442279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61324442273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30662221139 + 30662221140.

It is an arithmetic number, because the mean of its divisors is an integer number (30662221140).

Almost surely, 2^61324442279 is an apocalyptic number.

61324442279 is a deficient number, since it is larger than the sum of its proper divisors (1).

61324442279 is an equidigital number, since it uses as much as digits as its factorization.

61324442279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The spelling of 61324442279 in words is "sixty-one billion, three hundred twenty-four million, four hundred forty-two thousand, two hundred seventy-nine".