74789145912 has 64 divisors (see below), whose sum is σ = 201384802080. Its totient is φ = 23008684032.

The previous prime is 74789145911. The next prime is 74789145923. The reversal of 74789145912 is 21954198747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74789145911) 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 15 ways as a sum of consecutive naturals, for example, 2900308 + ... + 2925980.

Almost surely, 2^74789145912 is an apocalyptic number.

It is an amenable number.

74789145912 is an abundant number, since it is smaller than the sum of its proper divisors (126595656168).

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

74789145912 is a wasteful number, since it uses less digits than its factorization.

74789145912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35032 (or 35028 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The spelling of 74789145912 in words is "seventy-four billion, seven hundred eighty-nine million, one hundred forty-five thousand, nine hundred twelve".