7420818877924 has 9 divisors (see below), whose sum is σ = 12986442570787. Its totient is φ = 3710406714844.

The previous prime is 7420818877853. The next prime is 7420818877939. The reversal of 7420818877924 is 4297788180247.

The square root of 7420818877924 is 2724118.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7420818877924.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4767207 + ... + 6129265.

Almost surely, 2^{7420818877924} is an apocalyptic number.

7420818877924 is the 2724118-th square number.

It is an amenable number.

7420818877924 is a deficient number, since it is larger than the sum of its proper divisors (5565623692863).

7420818877924 is an frugal number, since it uses more digits than its factorization.

7420818877924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724122 (or 1362061 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 67.

The spelling of 7420818877924 in words is "seven trillion, four hundred twenty billion, eight hundred eighteen million, eight hundred seventy-seven thousand, nine hundred twenty-four".