42499757671 has 16 divisors (see below), whose sum is σ = 48921640768. Its totient is φ = 36166176000.

The previous prime is 42499757623. The next prime is 42499757681. The reversal of 42499757671 is 17675799424.

It is a cyclic number.

It is not a de Polignac number, because 42499757671 - 2¹⁵ = 42499724903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42499757611) 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, 733561 + ... + 789373.

It is an arithmetic number, because the mean of its divisors is an integer number (3057602548).

Almost surely, 2^42499757671 is an apocalyptic number.

42499757671 is a deficient number, since it is larger than the sum of its proper divisors (6421883097).

42499757671 is a wasteful number, since it uses less digits than its factorization.

42499757671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56602.

The product of its digits is 26671680, while the sum is 61.

The spelling of 42499757671 in words is "forty-two billion, four hundred ninety-nine million, seven hundred fifty-seven thousand, six hundred seventy-one".