74159852772989 has 4 divisors (see below), whose sum is σ = 74160090238620. Its totient is φ = 74159615307360.

The previous prime is 74159852772983. The next prime is 74159852773007. The reversal of 74159852772989 is 98927725895147.

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 15988266152089 + 58171586620900 = 3998533^2 + 7627030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74159852772989 is a prime.

It is a super-2 number, since 2×74159852772989² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74159852772983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118263752 + ... + 118889169.

It is an arithmetic number, because the mean of its divisors is an integer number (18540022559655).

Almost surely, 2^{74159852772989} is an apocalyptic number.

It is an amenable number.

74159852772989 is a deficient number, since it is larger than the sum of its proper divisors (237465631).

74159852772989 is a wasteful number, since it uses less digits than its factorization.

74159852772989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237465630.

The product of its digits is 6401203200, while the sum is 83.

The spelling of 74159852772989 in words is "seventy-four trillion, one hundred fifty-nine billion, eight hundred fifty-two million, seven hundred seventy-two thousand, nine hundred eighty-nine".