7420686043 has 4 divisors (see below), whose sum is σ = 7420861288. Its totient is φ = 7420510800.

The previous prime is 7420686011. The next prime is 7420686061. The reversal of 7420686043 is 3406860247.

It is a happy number.

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 7420686043 - 2⁵ = 7420686011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7420685987 and 7420686005.

It is not an unprimeable number, because it can be changed into a prime (7420686743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19768 + ... + 123418.

It is an arithmetic number, because the mean of its divisors is an integer number (1855215322).

Almost surely, 2^7420686043 is an apocalyptic number.

7420686043 is a deficient number, since it is larger than the sum of its proper divisors (175245).

7420686043 is a wasteful number, since it uses less digits than its factorization.

7420686043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175244.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 7420686043 is about 86143.4039436566. The cubic root of 7420686043 is about 1950.5092724629.

The spelling of 7420686043 in words is "seven billion, four hundred twenty million, six hundred eighty-six thousand, forty-three".