40343707273 has 2 divisors, whose sum is σ = 40343707274. Its totient is φ = 40343707272.

The previous prime is 40343707249. The next prime is 40343707277. The reversal of 40343707273 is 37270734304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37546037824 + 2797669449 = 193768^2 + 52893^2 .

It is a cyclic number.

It is not a de Polignac number, because 40343707273 - 2²¹ = 40341610121 is a prime.

It is a super-2 number, since 2×40343707273² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40343707277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171853636 + 20171853637.

It is an arithmetic number, because the mean of its divisors is an integer number (20171853637).

Almost surely, 2^40343707273 is an apocalyptic number.

It is an amenable number.

40343707273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40343707273 is an equidigital number, since it uses as much as digits as its factorization.

40343707273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 40.

The spelling of 40343707273 in words is "forty billion, three hundred forty-three million, seven hundred seven thousand, two hundred seventy-three".