70861012939 has 2 divisors, whose sum is σ = 70861012940. Its totient is φ = 70861012938.

The previous prime is 70861012933. The next prime is 70861012951. The reversal of 70861012939 is 93921016807.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70861012939 - 2³ = 70861012931 is a prime.

It is a super-2 number, since 2×70861012939² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70861012931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35430506469 + 35430506470.

It is an arithmetic number, because the mean of its divisors is an integer number (35430506470).

Almost surely, 2^70861012939 is an apocalyptic number.

70861012939 is a deficient number, since it is larger than the sum of its proper divisors (1).

70861012939 is an equidigital number, since it uses as much as digits as its factorization.

70861012939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 70861012939 in words is "seventy billion, eight hundred sixty-one million, twelve thousand, nine hundred thirty-nine".