42471656487 has 48 divisors (see below), whose sum is σ = 66462072768. Its totient is φ = 25980618240.

The previous prime is 42471656473. The next prime is 42471656497. The reversal of 42471656487 is 78465617424.

42471656487 is a `hidden beast` number, since 4 + 2 + 4 + 71 + 6 + 564 + 8 + 7 = 666.

It is not a de Polignac number, because 42471656487 - 2¹⁴ = 42471640103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471656417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15665062 + ... + 15667772.

It is an arithmetic number, because the mean of its divisors is an integer number (1384626516).

Almost surely, 2^42471656487 is an apocalyptic number.

42471656487 is a deficient number, since it is larger than the sum of its proper divisors (23990416281).

42471656487 is a wasteful number, since it uses less digits than its factorization.

42471656487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3477 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 42471656487 in words is "forty-two billion, four hundred seventy-one million, six hundred fifty-six thousand, four hundred eighty-seven".