70557271387 has 2 divisors, whose sum is σ = 70557271388. Its totient is φ = 70557271386.

The previous prime is 70557271313. The next prime is 70557271409. The reversal of 70557271387 is 78317275507.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70557271387 is a prime.

It is not a weakly prime, because it can be changed into another prime (70557277387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35278635693 + 35278635694.

It is an arithmetic number, because the mean of its divisors is an integer number (35278635694).

Almost surely, 2^70557271387 is an apocalyptic number.

70557271387 is a deficient number, since it is larger than the sum of its proper divisors (1).

70557271387 is an equidigital number, since it uses as much as digits as its factorization.

70557271387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2881200, while the sum is 52.

The spelling of 70557271387 in words is "seventy billion, five hundred fifty-seven million, two hundred seventy-one thousand, three hundred eighty-seven".