7219421943 has 16 divisors (see below), whose sum is σ = 10331748576. Its totient is φ = 4467778560.

The previous prime is 7219421927. The next prime is 7219421947. The reversal of 7219421943 is 3491249127.

It is a happy number.

It is not a de Polignac number, because 7219421943 - 2⁴ = 7219421927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7219421895 and 7219421904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7219421947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965848 + ... + 973293.

It is an arithmetic number, because the mean of its divisors is an integer number (645734286).

Almost surely, 2^7219421943 is an apocalyptic number.

7219421943 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7219421943 is a deficient number, since it is larger than the sum of its proper divisors (3112326633).

7219421943 is a wasteful number, since it uses less digits than its factorization.

7219421943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939234.

The product of its digits is 108864, while the sum is 42.

The square root of 7219421943 is about 84967.1815644134. The cubic root of 7219421943 is about 1932.7134770058.

The spelling of 7219421943 in words is "seven billion, two hundred nineteen million, four hundred twenty-one thousand, nine hundred forty-three".