74556091845078 has 8 divisors (see below), whose sum is σ = 149112183690168. Its totient is φ = 24852030615024.

The previous prime is 74556091845071. The next prime is 74556091845083. The reversal of 74556091845078 is 87054819065547.

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

74556091845078 is an admirable number.

It is a super-2 number, since 2×74556091845078² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74556091845071) 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, 6213007653751 + ... + 6213007653762.

It is an arithmetic number, because the mean of its divisors is an integer number (18639022961271).

Almost surely, 2^{74556091845078} is an apocalyptic number.

74556091845078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74556091845078 is a wasteful number, since it uses less digits than its factorization.

74556091845078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12426015307518.

The product of its (nonzero) digits is 338688000, while the sum is 69.

The spelling of 74556091845078 in words is "seventy-four trillion, five hundred fifty-six billion, ninety-one million, eight hundred forty-five thousand, seventy-eight".