213731934709 has 8 divisors (see below), whose sum is σ = 220787246592. Its totient is φ = 206686668720.

The previous prime is 213731934683. The next prime is 213731934737. The reversal of 213731934709 is 907439137312.

213731934709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213731934709 - 2¹⁵ = 213731901941 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 (213731934209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2468209 + ... + 2553334.

It is an arithmetic number, because the mean of its divisors is an integer number (27598405824).

Almost surely, 2^213731934709 is an apocalyptic number.

It is an amenable number.

213731934709 is a deficient number, since it is larger than the sum of its proper divisors (7055311883).

213731934709 is a wasteful number, since it uses less digits than its factorization.

213731934709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022947.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 213731934709 in words is "two hundred thirteen billion, seven hundred thirty-one million, nine hundred thirty-four thousand, seven hundred nine".