42731760849 has 16 divisors (see below), whose sum is σ = 57603245952. Its totient is φ = 28174468608.

The previous prime is 42731760823. The next prime is 42731760853. The reversal of 42731760849 is 94806713724.

42731760849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42731760849 is a prime.

It is a super-2 number, since 2×42731760849² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42731760899) 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, 372292 + ... + 473354.

It is an arithmetic number, because the mean of its divisors is an integer number (3600202872).

Almost surely, 2^42731760849 is an apocalyptic number.

It is an amenable number.

42731760849 is a deficient number, since it is larger than the sum of its proper divisors (14871485103).

42731760849 is a wasteful number, since it uses less digits than its factorization.

42731760849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102616.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 42731760849 in words is "forty-two billion, seven hundred thirty-one million, seven hundred sixty thousand, eight hundred forty-nine".