74180389659913 has 4 divisors (see below), whose sum is σ = 74180471781780. Its totient is φ = 74180307538048.

The previous prime is 74180389659847. The next prime is 74180389659967. The reversal of 74180389659913 is 31995698308147.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6216804195904 + 67963585464009 = 2493352^2 + 8244003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74180389659913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74180389654913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39690748 + ... + 41517661.

It is an arithmetic number, because the mean of its divisors is an integer number (18545117945445).

Almost surely, 2^{74180389659913} is an apocalyptic number.

It is an amenable number.

74180389659913 is a deficient number, since it is larger than the sum of its proper divisors (82121867).

74180389659913 is an equidigital number, since it uses as much as digits as its factorization.

74180389659913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82121866.

The product of its (nonzero) digits is 352719360, while the sum is 73.

The spelling of 74180389659913 in words is "seventy-four trillion, one hundred eighty billion, three hundred eighty-nine million, six hundred fifty-nine thousand, nine hundred thirteen".