67373706740 has 72 divisors (see below), whose sum is σ = 153551678616. Its totient is φ = 24745369600.

The previous prime is 67373706739. The next prime is 67373706767. The reversal of 67373706740 is 4760737376.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 21736784356 + 45636922384 = 147434^2 + 213628^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512600 + ... + 630480.

It is an arithmetic number, because the mean of its divisors is an integer number (2132662203).

Almost surely, 2^67373706740 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 67373706740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76775839308).

67373706740 is an abundant number, since it is smaller than the sum of its proper divisors (86177971876).

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

67373706740 is a wasteful number, since it uses less digits than its factorization.

67373706740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117989 (or 117946 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 50.

The spelling of 67373706740 in words is "sixty-seven billion, three hundred seventy-three million, seven hundred six thousand, seven hundred forty".