40700057257 has 2 divisors, whose sum is σ = 40700057258. Its totient is φ = 40700057256.

The previous prime is 40700057249. The next prime is 40700057287. The reversal of 40700057257 is 75275000704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38433249936 + 2266807321 = 196044^2 + 47611^2 .

It is a cyclic number.

It is not a de Polignac number, because 40700057257 - 2³ = 40700057249 is a prime.

It is not a weakly prime, because it can be changed into another prime (40700057287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20350028628 + 20350028629.

It is an arithmetic number, because the mean of its divisors is an integer number (20350028629).

Almost surely, 2^40700057257 is an apocalyptic number.

It is an amenable number.

40700057257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40700057257 is an equidigital number, since it uses as much as digits as its factorization.

40700057257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 37.

The spelling of 40700057257 in words is "forty billion, seven hundred million, fifty-seven thousand, two hundred fifty-seven".