7398642543 has 32 divisors (see below), whose sum is σ = 10135756800. Its totient is φ = 4799165280.

The previous prime is 7398642529. The next prime is 7398642547. The reversal of 7398642543 is 3452468937.

It is not a de Polignac number, because 7398642543 - 2¹² = 7398638447 is a prime.

It is a super-2 number, since 2×7398642543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7398642547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12351358 + ... + 12351956.

It is an arithmetic number, because the mean of its divisors is an integer number (316742400).

Almost surely, 2^7398642543 is an apocalyptic number.

7398642543 is a deficient number, since it is larger than the sum of its proper divisors (2737114257).

7398642543 is a wasteful number, since it uses less digits than its factorization.

7398642543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339.

The product of its digits is 4354560, while the sum is 51.

The square root of 7398642543 is about 86015.3622500074. The cubic root of 7398642543 is about 1948.5759967867.

The spelling of 7398642543 in words is "seven billion, three hundred ninety-eight million, six hundred forty-two thousand, five hundred forty-three".