40004073737 has 2 divisors, whose sum is σ = 40004073738. Its totient is φ = 40004073736.

The previous prime is 40004073727. The next prime is 40004073743. The reversal of 40004073737 is 73737040004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20038101136 + 19965972601 = 141556^2 + 141301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40004073737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40004073697 and 40004073706.

It is not a weakly prime, because it can be changed into another prime (40004073727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002036868 + 20002036869.

It is an arithmetic number, because the mean of its divisors is an integer number (20002036869).

Almost surely, 2^40004073737 is an apocalyptic number.

It is an amenable number.

40004073737 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004073737 is an equidigital number, since it uses as much as digits as its factorization.

40004073737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 35.

The spelling of 40004073737 in words is "forty billion, four million, seventy-three thousand, seven hundred thirty-seven".