42045777243 has 16 divisors (see below), whose sum is σ = 62307812640. Its totient is φ = 28022520672.

The previous prime is 42045777229. The next prime is 42045777251. The reversal of 42045777243 is 34277754024.

42045777243 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 577 + 72 + 4 + 3 = 666.

It is not a de Polignac number, because 42045777243 - 2⁴ = 42045777227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42045777253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124996 + ... + 315777.

It is an arithmetic number, because the mean of its divisors is an integer number (3894238290).

Almost surely, 2^42045777243 is an apocalyptic number.

42045777243 is a deficient number, since it is larger than the sum of its proper divisors (20262035397).

42045777243 is a wasteful number, since it uses less digits than its factorization.

42045777243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444315 (or 444309 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 45.

The spelling of 42045777243 in words is "forty-two billion, forty-five million, seven hundred seventy-seven thousand, two hundred forty-three".