40380849632437 has 2 divisors, whose sum is σ = 40380849632438. Its totient is φ = 40380849632436.

The previous prime is 40380849632411. The next prime is 40380849632471. The reversal of 40380849632437 is 73423694808304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39568704413956 + 812145218481 = 6290366^2 + 901191^2 .

It is a cyclic number.

It is not a de Polignac number, because 40380849632437 - 2⁷ = 40380849632309 is a prime.

It is a super-2 number, since 2×40380849632437² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40380849632737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20190424816218 + 20190424816219.

It is an arithmetic number, because the mean of its divisors is an integer number (20190424816219).

Almost surely, 2^{40380849632437} is an apocalyptic number.

It is an amenable number.

40380849632437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40380849632437 is an equidigital number, since it uses as much as digits as its factorization.

40380849632437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83607552, while the sum is 61.

The spelling of 40380849632437 in words is "forty trillion, three hundred eighty billion, eight hundred forty-nine million, six hundred thirty-two thousand, four hundred thirty-seven".