42747172028 has 24 divisors (see below), whose sum is σ = 82155956400. Its totient is φ = 19300123520.

The previous prime is 42747171979. The next prime is 42747172049. The reversal of 42747172028 is 82027174724.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 42747172028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253601 + ... + 3266712.

It is an arithmetic number, because the mean of its divisors is an integer number (3423164850).

Almost surely, 2^42747172028 is an apocalyptic number.

It is an amenable number.

42747172028 is a deficient number, since it is larger than the sum of its proper divisors (39408784372).

42747172028 is a wasteful number, since it uses less digits than its factorization.

42747172028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520477 (or 6520475 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 44.

The spelling of 42747172028 in words is "forty-two billion, seven hundred forty-seven million, one hundred seventy-two thousand, twenty-eight".