7812543441622 has 4 divisors (see below), whose sum is σ = 11718815162436. Its totient is φ = 3906271720810.

The previous prime is 7812543441581. The next prime is 7812543441629. The reversal of 7812543441622 is 2261443452187.

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

It is a super-2 number, since 2×7812543441622² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7812543441629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953135860404 + ... + 1953135860407.

It is an arithmetic number, because the mean of its divisors is an integer number (2929703790609).

Almost surely, 2^{7812543441622} is an apocalyptic number.

7812543441622 is a deficient number, since it is larger than the sum of its proper divisors (3906271720814).

7812543441622 is a wasteful number, since it uses less digits than its factorization.

7812543441622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906271720813.

The product of its digits is 2580480, while the sum is 49.

The spelling of 7812543441622 in words is "seven trillion, eight hundred twelve billion, five hundred forty-three million, four hundred forty-one thousand, six hundred twenty-two".