212961015985 has 8 divisors (see below), whose sum is σ = 255618054720. Its totient is φ = 170325589104.

The previous prime is 212961015973. The next prime is 212961016049. The reversal of 212961015985 is 589510169212.

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 212961015985 - 2⁷ = 212961015857 is a prime.

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, 5381275 + ... + 5420704.

It is an arithmetic number, because the mean of its divisors is an integer number (31952256840).

Almost surely, 2^212961015985 is an apocalyptic number.

It is an amenable number.

212961015985 is a deficient number, since it is larger than the sum of its proper divisors (42657038735).

212961015985 is a wasteful number, since it uses less digits than its factorization.

212961015985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10805927.

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 212961015985 in words is "two hundred twelve billion, nine hundred sixty-one million, fifteen thousand, nine hundred eighty-five".