11670070987 has 4 divisors (see below), whose sum is σ = 11834438256. Its totient is φ = 11505703720.

The previous prime is 11670070981. The next prime is 11670071069. The reversal of 11670070987 is 78907007611.

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 11670070987 - 2³¹ = 9522587339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11670070981) 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, 82183528 + ... + 82183669.

It is an arithmetic number, because the mean of its divisors is an integer number (2958609564).

Almost surely, 2^11670070987 is an apocalyptic number.

11670070987 is a deficient number, since it is larger than the sum of its proper divisors (164367269).

11670070987 is an equidigital number, since it uses as much as digits as its factorization.

11670070987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164367268.

The product of its (nonzero) digits is 148176, while the sum is 46.

The spelling of 11670070987 in words is "eleven billion, six hundred seventy million, seventy thousand, nine hundred eighty-seven".