10645621031443 has 4 divisors (see below), whose sum is σ = 10645741448848. Its totient is φ = 10645500614040.

The previous prime is 10645621031431. The next prime is 10645621031471. The reversal of 10645621031443 is 34413012654601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10645621031443 - 2⁹ = 10645621030931 is a prime.

It is a super-2 number, since 2×10645621031443² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10645621031396 and 10645621031405.

It is not an unprimeable number, because it can be changed into a prime (10645621031413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60075996 + ... + 60252937.

It is an arithmetic number, because the mean of its divisors is an integer number (2661435362212).

Almost surely, 2^{10645621031443} is an apocalyptic number.

10645621031443 is a deficient number, since it is larger than the sum of its proper divisors (120417405).

10645621031443 is an equidigital number, since it uses as much as digits as its factorization.

10645621031443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120417404.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 10645621031443 in words is "ten trillion, six hundred forty-five billion, six hundred twenty-one million, thirty-one thousand, four hundred forty-three".