21190712367 has 16 divisors (see below), whose sum is σ = 30830931072. Its totient is φ = 12839490720.

The previous prime is 21190712339. The next prime is 21190712393. The reversal of 21190712367 is 76321709112.

It is not a de Polignac number, because 21190712367 - 2¹⁹ = 21190188079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21190712317) 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, 46753 + ... + 211109.

It is an arithmetic number, because the mean of its divisors is an integer number (1926933192).

Almost surely, 2^21190712367 is an apocalyptic number.

21190712367 is a deficient number, since it is larger than the sum of its proper divisors (9640218705).

21190712367 is a wasteful number, since it uses less digits than its factorization.

21190712367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168278.

The product of its (nonzero) digits is 31752, while the sum is 39.

The spelling of 21190712367 in words is "twenty-one billion, one hundred ninety million, seven hundred twelve thousand, three hundred sixty-seven".