42823642140 has 72 divisors (see below), whose sum is σ = 134709447600. Its totient is φ = 11419636608.

The previous prime is 42823642139. The next prime is 42823642151. The reversal of 42823642140 is 4124632824.

42823642140 is a `hidden beast` number, since 4 + 2 + 8 + 2 + 3 + 642 + 1 + 4 + 0 = 666.

It is a super-2 number, since 2×42823642140² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42823642095 and 42823642104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4400865 + ... + 4410584.

It is an arithmetic number, because the mean of its divisors is an integer number (1870964550).

Almost surely, 2^42823642140 is an apocalyptic number.

It is an amenable number.

42823642140 is an abundant number, since it is smaller than the sum of its proper divisors (91885805460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42823642140 is a wasteful number, since it uses less digits than its factorization.

42823642140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811473 (or 8811459 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 42823642140 in words is "forty-two billion, eight hundred twenty-three million, six hundred forty-two thousand, one hundred forty".