42915234144784 has 45 divisors (see below), whose sum is σ = 87755836381677. Its totient is φ = 20328032970432.

The previous prime is 42915234144773. The next prime is 42915234144787. The reversal of 42915234144784 is 48744143251924.

The square root of 42915234144784 is 6550972.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 168116400400 + 42747117744384 = 410020^2 + 6538128^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42915234144787) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 497830774 + ... + 497916970.

Almost surely, 2^{42915234144784} is an apocalyptic number.

42915234144784 is the 6550972-nd square number.

It is an amenable number.

42915234144784 is an abundant number, since it is smaller than the sum of its proper divisors (44840602236893).

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

42915234144784 is an frugal number, since it uses more digits than its factorization.

42915234144784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172440 (or 86218 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 58.

The spelling of 42915234144784 in words is "forty-two trillion, nine hundred fifteen billion, two hundred thirty-four million, one hundred forty-four thousand, seven hundred eighty-four".