40485458437 has 2 divisors, whose sum is σ = 40485458438. Its totient is φ = 40485458436.

The previous prime is 40485458393. The next prime is 40485458473. The reversal of 40485458437 is 73485458404.

Together with next prime (40485458473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035988196 + 8449470241 = 178986^2 + 91921^2 .

It is a cyclic number.

It is not a de Polignac number, because 40485458437 - 2⁷ = 40485458309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40485458137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20242729218 + 20242729219.

It is an arithmetic number, because the mean of its divisors is an integer number (20242729219).

Almost surely, 2^40485458437 is an apocalyptic number.

It is an amenable number.

40485458437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40485458437 is an equidigital number, since it uses as much as digits as its factorization.

40485458437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8601600, while the sum is 52.

The spelling of 40485458437 in words is "forty billion, four hundred eighty-five million, four hundred fifty-eight thousand, four hundred thirty-seven".