212890170039 has 16 divisors (see below), whose sum is σ = 286117056000. Its totient is φ = 140796420800.

The previous prime is 212890170019. The next prime is 212890170049. The reversal of 212890170039 is 930071098212.

It is a cyclic number.

It is not a de Polignac number, because 212890170039 - 2¹¹ = 212890167991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212890170019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443314 + ... + 788864.

It is an arithmetic number, because the mean of its divisors is an integer number (17882316000).

Almost surely, 2^212890170039 is an apocalyptic number.

212890170039 is a deficient number, since it is larger than the sum of its proper divisors (73226885961).

212890170039 is a wasteful number, since it uses less digits than its factorization.

212890170039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347190.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 212890170039 in words is "two hundred twelve billion, eight hundred ninety million, one hundred seventy thousand, thirty-nine".