42640157583 has 12 divisors (see below), whose sum is σ = 61614979920. Its totient is φ = 28415860416.

The previous prime is 42640157557. The next prime is 42640157653. The reversal of 42640157583 is 38575104624.

42640157583 is a `hidden beast` number, since 4 + 2 + 64 + 0 + 1 + 5 + 7 + 583 = 666.

It is not a de Polignac number, because 42640157583 - 2¹⁷ = 42640026511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42640157083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884491 + ... + 931452.

It is an arithmetic number, because the mean of its divisors is an integer number (5134581660).

Almost surely, 2^42640157583 is an apocalyptic number.

42640157583 is a deficient number, since it is larger than the sum of its proper divisors (18974822337).

42640157583 is a wasteful number, since it uses less digits than its factorization.

42640157583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818558 (or 1818555 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 42640157583 in words is "forty-two billion, six hundred forty million, one hundred fifty-seven thousand, five hundred eighty-three".