10621971683810 has 8 divisors (see below), whose sum is σ = 19119549030876. Its totient is φ = 4248788673520.

The previous prime is 10621971683723. The next prime is 10621971683831. The reversal of 10621971683810 is 1838617912601.

It can be written as a sum of positive squares in 2 ways, for example, as 10619757887209 + 2213796601 = 3258797^2 + 47051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10621971683810² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531098584181 + ... + 531098584200.

Almost surely, 2^{10621971683810} is an apocalyptic number.

10621971683810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10621971683810 is a deficient number, since it is larger than the sum of its proper divisors (8497577347066).

10621971683810 is a wasteful number, since it uses less digits than its factorization.

10621971683810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062197168388.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 10621971683810 in words is "ten trillion, six hundred twenty-one billion, nine hundred seventy-one million, six hundred eighty-three thousand, eight hundred ten".