40070204257 has 2 divisors, whose sum is σ = 40070204258. Its totient is φ = 40070204256.

The previous prime is 40070204231. The next prime is 40070204269. The reversal of 40070204257 is 75240207004.

40070204257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38763309456 + 1306894801 = 196884^2 + 36151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40070204257 is a prime.

It is not a weakly prime, because it can be changed into another prime (40070204557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20035102128 + 20035102129.

It is an arithmetic number, because the mean of its divisors is an integer number (20035102129).

Almost surely, 2^40070204257 is an apocalyptic number.

It is an amenable number.

40070204257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40070204257 is an equidigital number, since it uses as much as digits as its factorization.

40070204257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 31.

The spelling of 40070204257 in words is "forty billion, seventy million, two hundred four thousand, two hundred fifty-seven".