10621311612 has 96 divisors (see below), whose sum is σ = 27131489280. Its totient is φ = 3220300800.

The previous prime is 10621311541. The next prime is 10621311647. The reversal of 10621311612 is 21611312601.

It is a happy number.

10621311612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10621311612² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1135089 + ... + 1144407.

It is an arithmetic number, because the mean of its divisors is an integer number (282619680).

Almost surely, 2^10621311612 is an apocalyptic number.

10621311612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10621311612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13565744640).

10621311612 is an abundant number, since it is smaller than the sum of its proper divisors (16510177668).

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

10621311612 is a wasteful number, since it uses less digits than its factorization.

10621311612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 10621311612 in words is "ten billion, six hundred twenty-one million, three hundred eleven thousand, six hundred twelve".