70668569987 has 8 divisors (see below), whose sum is σ = 72733963536. Its totient is φ = 68611357152.

The previous prime is 70668569969. The next prime is 70668570017. The reversal of 70668569987 is 78996586607.

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 70668569987 - 2²⁶ = 70601461123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70668569987.

It is not an unprimeable number, because it can be changed into a prime (70668569957) 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, 2027648 + ... + 2062205.

It is an arithmetic number, because the mean of its divisors is an integer number (9091745442).

Almost surely, 2^70668569987 is an apocalyptic number.

70668569987 is a deficient number, since it is larger than the sum of its proper divisors (2065393549).

70668569987 is a wasteful number, since it uses less digits than its factorization.

70668569987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090357.

The product of its (nonzero) digits is 274337280, while the sum is 71.

The spelling of 70668569987 in words is "seventy billion, six hundred sixty-eight million, five hundred sixty-nine thousand, nine hundred eighty-seven".