74486240197 has 8 divisors (see below), whose sum is σ = 78931978200. Its totient is φ = 70047634944.

The previous prime is 74486240161. The next prime is 74486240239. The reversal of 74486240197 is 79104268447.

It can be written as a sum of positive squares in 4 ways, for example, as 38374459236 + 36111780961 = 195894^2 + 190031^2 .

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 74486240197 - 2²⁷ = 74352022469 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 (74486240137) 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, 1761672 + ... + 1803457.

It is an arithmetic number, because the mean of its divisors is an integer number (9866497275).

Almost surely, 2^74486240197 is an apocalyptic number.

It is an amenable number.

74486240197 is a deficient number, since it is larger than the sum of its proper divisors (4445738003).

74486240197 is a wasteful number, since it uses less digits than its factorization.

74486240197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566375.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 74486240197 in words is "seventy-four billion, four hundred eighty-six million, two hundred forty thousand, one hundred ninety-seven".