40485655771237 has 2 divisors, whose sum is σ = 40485655771238. Its totient is φ = 40485655771236.

The previous prime is 40485655771217. The next prime is 40485655771331. The reversal of 40485655771237 is 73217755658404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21137613124356 + 19348042646881 = 4597566^2 + 4398641^2 .

It is a cyclic number.

It is not a de Polignac number, because 40485655771237 - 2¹⁵ = 40485655738469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40485655771217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20242827885618 + 20242827885619.

It is an arithmetic number, because the mean of its divisors is an integer number (20242827885619).

Almost surely, 2^{40485655771237} is an apocalyptic number.

It is an amenable number.

40485655771237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40485655771237 is an equidigital number, since it uses as much as digits as its factorization.

40485655771237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568000, while the sum is 64.

The spelling of 40485655771237 in words is "forty trillion, four hundred eighty-five billion, six hundred fifty-five million, seven hundred seventy-one thousand, two hundred thirty-seven".