74556091845072 has 60 divisors (see below), whose sum is σ = 208654622198880. Its totient is φ = 24851897792064.

The previous prime is 74556091845071. The next prime is 74556091845083. The reversal of 74556091845072 is 27054819065547.

It is a happy number.

74556091845072 is a `hidden beast` number, since 7 + 4 + 5 + 5 + 609 + 18 + 4 + 5 + 0 + 7 + 2 = 666.

It is a super-2 number, since 2×74556091845072² (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 11 ways as a sum of consecutive naturals, for example, 27780429 + ... + 30345747.

It is an arithmetic number, because the mean of its divisors is an integer number (3477577036648).

Almost surely, 2^{74556091845072} is an apocalyptic number.

74556091845072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74556091845072 is an abundant number, since it is smaller than the sum of its proper divisors (134098530353808).

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

74556091845072 is a wasteful number, since it uses less digits than its factorization.

74556091845072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767160 (or 2767151 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 63.

The spelling of 74556091845072 in words is "seventy-four trillion, five hundred fifty-six billion, ninety-one million, eight hundred forty-five thousand, seventy-two".