10921559382 has 12 divisors (see below), whose sum is σ = 23663378700. Its totient is φ = 3640519788.

The previous prime is 10921559381. The next prime is 10921559387. The reversal of 10921559382 is 28395512901.

10921559382 is a `hidden beast` number, since 1 + 0 + 9 + 215 + 59 + 382 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921559381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303376632 + ... + 303376667.

It is an arithmetic number, because the mean of its divisors is an integer number (1971948225).

Almost surely, 2^10921559382 is an apocalyptic number.

10921559382 is an abundant number, since it is smaller than the sum of its proper divisors (12741819318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10921559382 is a wasteful number, since it uses less digits than its factorization.

10921559382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606753307 (or 606753304 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 10921559382 in words is "ten billion, nine hundred twenty-one million, five hundred fifty-nine thousand, three hundred eighty-two".