74321000136 has 192 divisors, whose sum is σ = 215437622400. Its totient is φ = 23133737088.

The previous prime is 74321000119. The next prime is 74321000137. The reversal of 74321000136 is 63100012347.

It is a super-2 number, since 2×74321000136² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74321000137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37668046 + ... + 37670018.

It is an arithmetic number, because the mean of its divisors is an integer number (1122070950).

Almost surely, 2^74321000136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74321000136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107718811200).

74321000136 is an abundant number, since it is smaller than the sum of its proper divisors (141116622264).

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

74321000136 is a wasteful number, since it uses less digits than its factorization.

74321000136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 74321000136 in words is "seventy-four billion, three hundred twenty-one million, one hundred thirty-six", and thus it is an aban number.