74472179838 has 16 divisors (see below), whose sum is σ = 170222125440. Its totient is φ = 21277765656.

The previous prime is 74472179833. The next prime is 74472179843. The reversal of 74472179838 is 83897127447.

It is an interprime number because it is at equal distance from previous prime (74472179833) and next prime (74472179843).

It is a super-2 number, since 2×74472179838² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74472179833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886573528 + ... + 886573611.

It is an arithmetic number, because the mean of its divisors is an integer number (10638882840).

Almost surely, 2^74472179838 is an apocalyptic number.

74472179838 is an abundant number, since it is smaller than the sum of its proper divisors (95749945602).

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

74472179838 is a wasteful number, since it uses less digits than its factorization.

74472179838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773147151.

The product of its digits is 18966528, while the sum is 60.

The spelling of 74472179838 in words is "seventy-four billion, four hundred seventy-two million, one hundred seventy-nine thousand, eight hundred thirty-eight".