42810721115 has 16 divisors (see below), whose sum is σ = 52352448768. Its totient is φ = 33595775616.

The previous prime is 42810721097. The next prime is 42810721159. The reversal of 42810721115 is 51112701824.

It is a cyclic number.

It is not a de Polignac number, because 42810721115 - 2¹⁰ = 42810720091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674569 + ... + 1699941.

It is an arithmetic number, because the mean of its divisors is an integer number (3272028048).

Almost surely, 2^42810721115 is an apocalyptic number.

42810721115 is a deficient number, since it is larger than the sum of its proper divisors (9541727653).

42810721115 is a wasteful number, since it uses less digits than its factorization.

42810721115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31798.

The product of its (nonzero) digits is 4480, while the sum is 32.

The spelling of 42810721115 in words is "forty-two billion, eight hundred ten million, seven hundred twenty-one thousand, one hundred fifteen".