7438820051 has 4 divisors (see below), whose sum is σ = 8011036992. Its totient is φ = 6866603112.

The previous prime is 7438820003. The next prime is 7438820063. The reversal of 7438820051 is 1500288347.

7438820051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7438820051 - 2²⁶ = 7371711187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7438819987 and 7438820014.

It is not an unprimeable number, because it can be changed into a prime (7438820251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286108451 + ... + 286108476.

It is an arithmetic number, because the mean of its divisors is an integer number (2002759248).

Almost surely, 2^7438820051 is an apocalyptic number.

7438820051 is a deficient number, since it is larger than the sum of its proper divisors (572216941).

7438820051 is a wasteful number, since it uses less digits than its factorization.

7438820051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572216940.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 7438820051 is about 86248.5944870987. The cubic root of 7438820051 is about 1952.0968066345.

The spelling of 7438820051 in words is "seven billion, four hundred thirty-eight million, eight hundred twenty thousand, fifty-one".