10521432782 has 12 divisors (see below), whose sum is σ = 18358826760. Its totient is φ = 4509185436.

The previous prime is 10521432781. The next prime is 10521432839. The reversal of 10521432782 is 28723412501.

It is a super-2 number, since 2×10521432782² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521432781) 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, 53680682 + ... + 53680877.

It is an arithmetic number, because the mean of its divisors is an integer number (1529902230).

Almost surely, 2^10521432782 is an apocalyptic number.

10521432782 is a deficient number, since it is larger than the sum of its proper divisors (7837393978).

10521432782 is a wasteful number, since it uses less digits than its factorization.

10521432782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107361575 (or 107361568 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 10521432782 in words is "ten billion, five hundred twenty-one million, four hundred thirty-two thousand, seven hundred eighty-two".