42978585552 has 160 divisors (see below), whose sum is σ = 128267123712. Its totient is φ = 12146982912.

The previous prime is 42978585521. The next prime is 42978585583. The reversal of 42978585552 is 25558587924.

It is an interprime number because it is at equal distance from previous prime (42978585521) and next prime (42978585583).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12430608 + ... + 12434064.

Almost surely, 2^42978585552 is an apocalyptic number.

42978585552 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42978585552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64133561856).

42978585552 is an abundant number, since it is smaller than the sum of its proper divisors (85288538160).

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

42978585552 is a wasteful number, since it uses less digits than its factorization.

42978585552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3859 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 60.

The spelling of 42978585552 in words is "forty-two billion, nine hundred seventy-eight million, five hundred eighty-five thousand, five hundred fifty-two".