42723896740 has 72 divisors (see below), whose sum is σ = 104617292472. Its totient is φ = 14613258240.

The previous prime is 42723896731. The next prime is 42723896741. The reversal of 42723896740 is 4769832724.

It can be written as a sum of positive squares in 4 ways, for example, as 6769669284 + 35954227456 = 82278^2 + 189616^2 .

It is not an unprimeable number, because it can be changed into a prime (42723896741) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 360804 + ... + 464356.

It is an arithmetic number, because the mean of its divisors is an integer number (1453017951).

Almost surely, 2^42723896740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42723896740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52308646236).

42723896740 is an abundant number, since it is smaller than the sum of its proper divisors (61893395732).

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

42723896740 is a wasteful number, since it uses less digits than its factorization.

42723896740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103997 (or 103988 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 42723896740 in words is "forty-two billion, seven hundred twenty-three million, eight hundred ninety-six thousand, seven hundred forty".