74464787645 has 8 divisors (see below), whose sum is σ = 89359303680. Its totient is φ = 59570791120.

The previous prime is 74464787641. The next prime is 74464787651. The reversal of 74464787645 is 54678746447.

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

It is not a de Polignac number, because 74464787645 - 2² = 74464787641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74464787641) 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, 340040 + ... + 514350.

It is an arithmetic number, because the mean of its divisors is an integer number (11169912960).

Almost surely, 2^74464787645 is an apocalyptic number.

It is an amenable number.

74464787645 is a deficient number, since it is larger than the sum of its proper divisors (14894516035).

74464787645 is a wasteful number, since it uses less digits than its factorization.

74464787645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259755.

The product of its digits is 126443520, while the sum is 62.

The spelling of 74464787645 in words is "seventy-four billion, four hundred sixty-four million, seven hundred eighty-seven thousand, six hundred forty-five".