70111812985 has 8 divisors (see below), whose sum is σ = 87792183360. Its totient is φ = 53650778544.

The previous prime is 70111812973. The next prime is 70111813081. The reversal of 70111812985 is 58921811107.

It is a happy number.

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 70111812985 - 2¹⁹ = 70111288697 is a prime.

It is a super-2 number, since 2×70111812985² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304833855 + ... + 304834084.

It is an arithmetic number, because the mean of its divisors is an integer number (10974022920).

Almost surely, 2^70111812985 is an apocalyptic number.

It is an amenable number.

70111812985 is a deficient number, since it is larger than the sum of its proper divisors (17680370375).

70111812985 is a wasteful number, since it uses less digits than its factorization.

70111812985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609667967.

The product of its (nonzero) digits is 40320, while the sum is 43.

The spelling of 70111812985 in words is "seventy billion, one hundred eleven million, eight hundred twelve thousand, nine hundred eighty-five".