40236762457 has 2 divisors, whose sum is σ = 40236762458. Its totient is φ = 40236762456.

The previous prime is 40236762439. The next prime is 40236762499. The reversal of 40236762457 is 75426763204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24507589401 + 15729173056 = 156549^2 + 125416^2 .

It is a cyclic number.

It is not a de Polignac number, because 40236762457 - 2⁷ = 40236762329 is a prime.

It is not a weakly prime, because it can be changed into another prime (40236762757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20118381228 + 20118381229.

It is an arithmetic number, because the mean of its divisors is an integer number (20118381229).

Almost surely, 2^40236762457 is an apocalyptic number.

It is an amenable number.

40236762457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40236762457 is an equidigital number, since it uses as much as digits as its factorization.

40236762457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 40236762457 in words is "forty billion, two hundred thirty-six million, seven hundred sixty-two thousand, four hundred fifty-seven".