70206646891 has 8 divisors (see below), whose sum is σ = 72160024304. Its totient is φ = 68256211680.

The previous prime is 70206646879. The next prime is 70206646927. The reversal of 70206646891 is 19864660207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70206646891 - 2⁵ = 70206646859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70206644891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687120 + ... + 782653.

It is an arithmetic number, because the mean of its divisors is an integer number (9020003038).

Almost surely, 2^70206646891 is an apocalyptic number.

70206646891 is a deficient number, since it is larger than the sum of its proper divisors (1953377413).

70206646891 is a wasteful number, since it uses less digits than its factorization.

70206646891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471101.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 70206646891 in words is "seventy billion, two hundred six million, six hundred forty-six thousand, eight hundred ninety-one".