42731760847 has 32 divisors (see below), whose sum is σ = 47102653440. Its totient is φ = 38603612160.

The previous prime is 42731760823. The next prime is 42731760853. The reversal of 42731760847 is 74806713724.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42731760847 - 2¹¹ = 42731758799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42731760847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42731760047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27199572 + ... + 27201142.

It is an arithmetic number, because the mean of its divisors is an integer number (1471957920).

Almost surely, 2^42731760847 is an apocalyptic number.

42731760847 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42731760847 is a deficient number, since it is larger than the sum of its proper divisors (4370892593).

42731760847 is a wasteful number, since it uses less digits than its factorization.

42731760847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 42731760847 in words is "forty-two billion, seven hundred thirty-one million, seven hundred sixty thousand, eight hundred forty-seven".