73340134128 has 80 divisors (see below), whose sum is σ = 210609020160. Its totient is φ = 24435601344.

The previous prime is 73340134123. The next prime is 73340134157. The reversal of 73340134128 is 82143104337.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 73340134092 and 73340134101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73340134123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941901 + ... + 1016787.

It is an arithmetic number, because the mean of its divisors is an integer number (2632612752).

Almost surely, 2^73340134128 is an apocalyptic number.

It is an amenable number.

73340134128 is an abundant number, since it is smaller than the sum of its proper divisors (137268886032).

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

73340134128 is a wasteful number, since it uses less digits than its factorization.

73340134128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77171 (or 77159 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 73340134128 in words is "seventy-three billion, three hundred forty million, one hundred thirty-four thousand, one hundred twenty-eight".