7420764543 has 4 divisors (see below), whose sum is σ = 9894352728. Its totient is φ = 4947176360.

The previous prime is 7420764541. The next prime is 7420764577. The reversal of 7420764543 is 3454670247.

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 7420764543 - 2¹ = 7420764541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7420764495 and 7420764504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420764541) 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, 1236794088 + ... + 1236794093.

It is an arithmetic number, because the mean of its divisors is an integer number (2473588182).

Almost surely, 2^7420764543 is an apocalyptic number.

7420764543 is a deficient number, since it is larger than the sum of its proper divisors (2473588185).

7420764543 is a wasteful number, since it uses less digits than its factorization.

7420764543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473588184.

The product of its (nonzero) digits is 564480, while the sum is 42.

The square root of 7420764543 is about 86143.8595780338. The cubic root of 7420764543 is about 1950.5161502834.

The spelling of 7420764543 in words is "seven billion, four hundred twenty million, seven hundred sixty-four thousand, five hundred forty-three".