74847136249 has 8 divisors (see below), whose sum is σ = 75450398400. Its totient is φ = 74245290000.

The previous prime is 74847136129. The next prime is 74847136283. The reversal of 74847136249 is 94263174847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74847136249 - 2²⁷ = 74712918521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74847136249.

It is not an unprimeable number, because it can be changed into a prime (74847136289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247699 + ... + 459400.

It is an arithmetic number, because the mean of its divisors is an integer number (9431299800).

Almost surely, 2^74847136249 is an apocalyptic number.

It is an amenable number.

74847136249 is a deficient number, since it is larger than the sum of its proper divisors (603262151).

74847136249 is a wasteful number, since it uses less digits than its factorization.

74847136249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707951.

The product of its digits is 8128512, while the sum is 55.

The spelling of 74847136249 in words is "seventy-four billion, eight hundred forty-seven million, one hundred thirty-six thousand, two hundred forty-nine".