40001475737 has 2 divisors, whose sum is σ = 40001475738. Its totient is φ = 40001475736.

The previous prime is 40001475727. The next prime is 40001475743. The reversal of 40001475737 is 73757410004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21723517321 + 18277958416 = 147389^2 + 135196^2 .

It is a cyclic number.

It is not a de Polignac number, because 40001475737 - 2¹² = 40001471641 is a prime.

It is a super-2 number, since 2×40001475737² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40001475737.

It is not a weakly prime, because it can be changed into another prime (40001475727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000737868 + 20000737869.

It is an arithmetic number, because the mean of its divisors is an integer number (20000737869).

Almost surely, 2^40001475737 is an apocalyptic number.

It is an amenable number.

40001475737 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001475737 is an equidigital number, since it uses as much as digits as its factorization.

40001475737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 38.

The spelling of 40001475737 in words is "forty billion, one million, four hundred seventy-five thousand, seven hundred thirty-seven".