40352510281 has 2 divisors, whose sum is σ = 40352510282. Its totient is φ = 40352510280.

The previous prime is 40352510269. The next prime is 40352510323. The reversal of 40352510281 is 18201525304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31032345600 + 9320164681 = 176160^2 + 96541^2 .

It is a cyclic number.

It is not a de Polignac number, because 40352510281 - 2⁷ = 40352510153 is a prime.

It is a super-2 number, since 2×40352510281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40352510381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20176255140 + 20176255141.

It is an arithmetic number, because the mean of its divisors is an integer number (20176255141).

Almost surely, 2^40352510281 is an apocalyptic number.

It is an amenable number.

40352510281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40352510281 is an equidigital number, since it uses as much as digits as its factorization.

40352510281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 40352510281 in words is "forty billion, three hundred fifty-two million, five hundred ten thousand, two hundred eighty-one".