40257000473 has 2 divisors, whose sum is σ = 40257000474. Its totient is φ = 40257000472.

The previous prime is 40257000401. The next prime is 40257000479. The reversal of 40257000473 is 37400075204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37495287769 + 2761712704 = 193637^2 + 52552^2 .

It is a cyclic number.

It is not a de Polignac number, because 40257000473 - 2¹⁸ = 40256738329 is a prime.

It is not a weakly prime, because it can be changed into another prime (40257000479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20128500236 + 20128500237.

It is an arithmetic number, because the mean of its divisors is an integer number (20128500237).

Almost surely, 2^40257000473 is an apocalyptic number.

It is an amenable number.

40257000473 is a deficient number, since it is larger than the sum of its proper divisors (1).

40257000473 is an equidigital number, since it uses as much as digits as its factorization.

40257000473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 32.

Adding to 40257000473 its reverse (37400075204), we get a palindrome (77657075677).

The spelling of 40257000473 in words is "forty billion, two hundred fifty-seven million, four hundred seventy-three", and thus it is an aban number.