42876742489 has 9 divisors (see below), whose sum is σ = 49878713151. Its totient is φ = 36750251160.

The previous prime is 42876742477. The next prime is 42876742511. The reversal of 42876742489 is 98424767824.

The square root of 42876742489 is 207067.

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., 31939766089 + 10936976400 = 178717^2 + 104580^2 .

It is not a de Polignac number, because 42876742489 - 2⁹ = 42876741977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42876742409) 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, 1434679 + ... + 1464259.

It is an arithmetic number, because the mean of its divisors is an integer number (5542079239).

Almost surely, 2^42876742489 is an apocalyptic number.

42876742489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

42876742489 is the 207067-th square number.

42876742489 is the 103534-th centered octagonal number.

It is an amenable number.

42876742489 is a deficient number, since it is larger than the sum of its proper divisors (7001970662).

42876742489 is an frugal number, since it uses more digits than its factorization.

42876742489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59176 (or 29588 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 61.

The spelling of 42876742489 in words is "forty-two billion, eight hundred seventy-six million, seven hundred forty-two thousand, four hundred eighty-nine".