10521400086 has 24 divisors (see below), whose sum is σ = 22808649864. Its totient is φ = 3505243680.

The previous prime is 10521400067. The next prime is 10521400139. The reversal of 10521400086 is 68000412501.

It is a super-2 number, since 2×10521400086² (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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122935 + ... + 190146.

It is an arithmetic number, because the mean of its divisors is an integer number (950360411).

Almost surely, 2^10521400086 is an apocalyptic number.

10521400086 is an abundant number, since it is smaller than the sum of its proper divisors (12287249778).

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

10521400086 is a wasteful number, since it uses less digits than its factorization.

10521400086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314956 (or 314953 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 10521400086 its reverse (68000412501), we get a palindrome (78521812587).

The spelling of 10521400086 in words is "ten billion, five hundred twenty-one million, four hundred thousand, eighty-six".