21967158382 has 16 divisors (see below), whose sum is σ = 35500413312. Its totient is φ = 10134401760.

The previous prime is 21967158329. The next prime is 21967158383. The reversal of 21967158382 is 28385176912.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21967158383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115518 + ... + 239329.

It is an arithmetic number, because the mean of its divisors is an integer number (2218775832).

Almost surely, 2^21967158382 is an apocalyptic number.

21967158382 is a deficient number, since it is larger than the sum of its proper divisors (13533254930).

21967158382 is a wasteful number, since it uses less digits than its factorization.

21967158382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357243.

The product of its digits is 1451520, while the sum is 52.

The spelling of 21967158382 in words is "twenty-one billion, nine hundred sixty-seven million, one hundred fifty-eight thousand, three hundred eighty-two".