70438057253 has 2 divisors, whose sum is σ = 70438057254. Its totient is φ = 70438057252.

The previous prime is 70438057247. The next prime is 70438057271. The reversal of 70438057253 is 35275083407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65772757444 + 4665299809 = 256462^2 + 68303^2 .

It is a cyclic number.

It is not a de Polignac number, because 70438057253 - 2²² = 70433862949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70438057213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35219028626 + 35219028627.

It is an arithmetic number, because the mean of its divisors is an integer number (35219028627).

Almost surely, 2^70438057253 is an apocalyptic number.

It is an amenable number.

70438057253 is a deficient number, since it is larger than the sum of its proper divisors (1).

70438057253 is an equidigital number, since it uses as much as digits as its factorization.

70438057253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 70438057253 in words is "seventy billion, four hundred thirty-eight million, fifty-seven thousand, two hundred fifty-three".