70138897903 has 2 divisors, whose sum is σ = 70138897904. Its totient is φ = 70138897902.

The previous prime is 70138897897. The next prime is 70138897909. The reversal of 70138897903 is 30979883107.

It is a balanced prime because it is at equal distance from previous prime (70138897897) and next prime (70138897909).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70138897903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70138897909) 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, 35069448951 + 35069448952.

It is an arithmetic number, because the mean of its divisors is an integer number (35069448952).

Almost surely, 2^70138897903 is an apocalyptic number.

70138897903 is a deficient number, since it is larger than the sum of its proper divisors (1).

70138897903 is an equidigital number, since it uses as much as digits as its factorization.

70138897903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 70138897903 in words is "seventy billion, one hundred thirty-eight million, eight hundred ninety-seven thousand, nine hundred three".