74086370789 has 4 divisors (see below), whose sum is σ = 76641073260. Its totient is φ = 71531668320.

The previous prime is 74086370783. The next prime is 74086370803. The reversal of 74086370789 is 98707368047.

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 41466398689 + 32619972100 = 203633^2 + 180610^2 .

It is a cyclic number.

It is not a de Polignac number, because 74086370789 - 2²⁸ = 73817935333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74086370783) 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, 1277351192 + ... + 1277351249.

It is an arithmetic number, because the mean of its divisors is an integer number (19160268315).

Almost surely, 2^74086370789 is an apocalyptic number.

It is an amenable number.

74086370789 is a deficient number, since it is larger than the sum of its proper divisors (2554702471).

74086370789 is a wasteful number, since it uses less digits than its factorization.

74086370789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554702470.

The product of its (nonzero) digits is 14224896, while the sum is 59.

The spelling of 74086370789 in words is "seventy-four billion, eighty-six million, three hundred seventy thousand, seven hundred eighty-nine".