70871619139 has 2 divisors, whose sum is σ = 70871619140. Its totient is φ = 70871619138.

The previous prime is 70871619113. The next prime is 70871619163. The reversal of 70871619139 is 93191617807.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70871619139 is a prime.

It is a super-2 number, since 2×70871619139² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70871619109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35435809569 + 35435809570.

It is an arithmetic number, because the mean of its divisors is an integer number (35435809570).

Almost surely, 2^70871619139 is an apocalyptic number.

70871619139 is a deficient number, since it is larger than the sum of its proper divisors (1).

70871619139 is an equidigital number, since it uses as much as digits as its factorization.

70871619139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 70871619139 in words is "seventy billion, eight hundred seventy-one million, six hundred nineteen thousand, one hundred thirty-nine".