6542405430 has 64 divisors (see below), whose sum is σ = 17873975808. Its totient is φ = 1517077760.

The previous prime is 6542405411. The next prime is 6542405533. The reversal of 6542405430 is 345042456.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 6542405391 and 6542405400.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 423399 + ... + 438578.

It is an arithmetic number, because the mean of its divisors is an integer number (279280872).

Almost surely, 2^6542405430 is an apocalyptic number.

6542405430 is an abundant number, since it is smaller than the sum of its proper divisors (11331570378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6542405430 is a wasteful number, since it uses less digits than its factorization.

6542405430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862021.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 6542405430 is about 80885.1372626640. The cubic root of 6542405430 is about 1870.3052138913.

Adding to 6542405430 its reverse (345042456), we get a palindrome (6887447886).

The spelling of 6542405430 in words is "six billion, five hundred forty-two million, four hundred five thousand, four hundred thirty".