42947757552 has 120 divisors (see below), whose sum is σ = 129122973696. Its totient is φ = 12265029504.

The previous prime is 42947757551. The next prime is 42947757571. The reversal of 42947757552 is 25575774924.

It is a junction number, because it is equal to n+sod(n) for n = 42947757492 and 42947757501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947757551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9328083 + ... + 9332685.

Almost surely, 2^42947757552 is an apocalyptic number.

42947757552 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 42947757552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64561486848).

42947757552 is an abundant number, since it is smaller than the sum of its proper divisors (86175216144).

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

42947757552 is a wasteful number, since it uses less digits than its factorization.

42947757552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595 (or 8582 counting only the distinct ones).

The product of its digits is 24696000, while the sum is 57.

The spelling of 42947757552 in words is "forty-two billion, nine hundred forty-seven million, seven hundred fifty-seven thousand, five hundred fifty-two".