74281660236779 has 2 divisors, whose sum is σ = 74281660236780. Its totient is φ = 74281660236778.

The previous prime is 74281660236643. The next prime is 74281660236799. The reversal of 74281660236779 is 97763206618247.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74281660236779 is a prime.

It is not a weakly prime, because it can be changed into another prime (74281660236799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37140830118389 + 37140830118390.

It is an arithmetic number, because the mean of its divisors is an integer number (37140830118390).

Almost surely, 2^{74281660236779} is an apocalyptic number.

74281660236779 is a deficient number, since it is larger than the sum of its proper divisors (1).

74281660236779 is an equidigital number, since it uses as much as digits as its factorization.

74281660236779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256048128, while the sum is 68.

The spelling of 74281660236779 in words is "seventy-four trillion, two hundred eighty-one billion, six hundred sixty million, two hundred thirty-six thousand, seven hundred seventy-nine".