73740336738 has 16 divisors (see below), whose sum is σ = 151466638080. Its totient is φ = 23915784816.

The previous prime is 73740336737. The next prime is 73740336793. The reversal of 73740336738 is 83763304737.

It is not an unprimeable number, because it can be changed into a prime (73740336737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166081618 + ... + 166082061.

It is an arithmetic number, because the mean of its divisors is an integer number (9466664880).

Almost surely, 2^73740336738 is an apocalyptic number.

73740336738 is an abundant number, since it is smaller than the sum of its proper divisors (77726301342).

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

73740336738 is a wasteful number, since it uses less digits than its factorization.

73740336738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332163721.

The product of its (nonzero) digits is 5334336, while the sum is 51.

The spelling of 73740336738 in words is "seventy-three billion, seven hundred forty million, three hundred thirty-six thousand, seven hundred thirty-eight".