2190086934989 has 4 divisors (see below), whose sum is σ = 2220933229920. Its totient is φ = 2159240640060.

The previous prime is 2190086934977. The next prime is 2190086935009. The reversal of 2190086934989 is 9894396800912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2190086934989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190086934289) 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, 15423147359 + ... + 15423147500.

It is an arithmetic number, because the mean of its divisors is an integer number (555233307480).

Almost surely, 2^{2190086934989} is an apocalyptic number.

It is an amenable number.

2190086934989 is a deficient number, since it is larger than the sum of its proper divisors (30846294931).

2190086934989 is an equidigital number, since it uses as much as digits as its factorization.

2190086934989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30846294930.

The product of its (nonzero) digits is 60466176, while the sum is 68.

The spelling of 2190086934989 in words is "two trillion, one hundred ninety billion, eighty-six million, nine hundred thirty-four thousand, nine hundred eighty-nine".