42908528556 has 18 divisors (see below), whose sum is σ = 108463225052. Its totient is φ = 14302842840.

The previous prime is 42908528543. The next prime is 42908528569. The reversal of 42908528556 is 65582580924.

42908528556 is a `hidden beast` number, since 4 + 2 + 9 + 0 + 85 + 2 + 8 + 556 = 666.

It is an interprime number because it is at equal distance from previous prime (42908528543) and next prime (42908528569).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×42908528556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595951750 + ... + 595951821.

Almost surely, 2^42908528556 is an apocalyptic number.

It is an amenable number.

42908528556 is an abundant number, since it is smaller than the sum of its proper divisors (65554696496).

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

42908528556 is a wasteful number, since it uses less digits than its factorization.

42908528556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191903581 (or 1191903576 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 42908528556 in words is "forty-two billion, nine hundred eight million, five hundred twenty-eight thousand, five hundred fifty-six".