7074074451821 has 48 divisors (see below), whose sum is σ = 8122971745152. Its totient is φ = 6144982272000.

The previous prime is 7074074451811. The next prime is 7074074451827. The reversal of 7074074451821 is 1281544704707.

It is not a de Polignac number, because 7074074451821 - 2³⁴ = 7056894582637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7074074451821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7074074451827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113753066 + ... + 113815236.

It is an arithmetic number, because the mean of its divisors is an integer number (169228578024).

Almost surely, 2^{7074074451821} is an apocalyptic number.

It is an amenable number.

7074074451821 is a deficient number, since it is larger than the sum of its proper divisors (1048897293331).

7074074451821 is a wasteful number, since it uses less digits than its factorization.

7074074451821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62694 (or 62681 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 50.

The spelling of 7074074451821 in words is "seven trillion, seventy-four billion, seventy-four million, four hundred fifty-one thousand, eight hundred twenty-one".