73740336737 has 2 divisors, whose sum is σ = 73740336738. Its totient is φ = 73740336736.

The previous prime is 73740336713. The next prime is 73740336793. The reversal of 73740336737 is 73763304737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45441022561 + 28299314176 = 213169^2 + 168224^2 .

It is a cyclic number.

It is not a de Polignac number, because 73740336737 - 2³⁴ = 56560467553 is a prime.

It is not a weakly prime, because it can be changed into another prime (73740336797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36870168368 + 36870168369.

It is an arithmetic number, because the mean of its divisors is an integer number (36870168369).

Almost surely, 2^73740336737 is an apocalyptic number.

It is an amenable number.

73740336737 is a deficient number, since it is larger than the sum of its proper divisors (1).

73740336737 is an equidigital number, since it uses as much as digits as its factorization.

73740336737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4667544, while the sum is 50.

The spelling of 73740336737 in words is "seventy-three billion, seven hundred forty million, three hundred thirty-six thousand, seven hundred thirty-seven".