2015432423542 has 16 divisors (see below), whose sum is σ = 3041703235872. Its totient is φ = 1001533138560.

The previous prime is 2015432423489. The next prime is 2015432423551. The reversal of 2015432423542 is 2453242345102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819918 + ... + 2709790.

It is an arithmetic number, because the mean of its divisors is an integer number (190106452242).

Almost surely, 2^{2015432423542} is an apocalyptic number.

2015432423542 is a deficient number, since it is larger than the sum of its proper divisors (1026270812330).

2015432423542 is a wasteful number, since it uses less digits than its factorization.

2015432423542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896823.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 2015432423542 its reverse (2453242345102), we get a palindrome (4468674768644).

The spelling of 2015432423542 in words is "two trillion, fifteen billion, four hundred thirty-two million, four hundred twenty-three thousand, five hundred forty-two".