70881566207 has 4 divisors (see below), whose sum is σ = 71852546640. Its totient is φ = 69910585776.

The previous prime is 70881566191. The next prime is 70881566213. The reversal of 70881566207 is 70266518807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70881566207 - 2⁴ = 70881566191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70881566237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485490107 + ... + 485490252.

It is an arithmetic number, because the mean of its divisors is an integer number (17963136660).

Almost surely, 2^70881566207 is an apocalyptic number.

70881566207 is a deficient number, since it is larger than the sum of its proper divisors (970980433).

70881566207 is an equidigital number, since it uses as much as digits as its factorization.

70881566207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970980432.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 70881566207 in words is "seventy billion, eight hundred eighty-one million, five hundred sixty-six thousand, two hundred seven".