42015644632 has 64 divisors (see below), whose sum is σ = 86392565280. Its totient is φ = 19040028672.

The previous prime is 42015644603. The next prime is 42015644641. The reversal of 42015644632 is 23644651024.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42015644591 and 42015644600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240758 + ... + 1274170.

Almost surely, 2^42015644632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42015644632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43196282640).

42015644632 is an abundant number, since it is smaller than the sum of its proper divisors (44376920648).

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

42015644632 is a wasteful number, since it uses less digits than its factorization.

42015644632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33652 (or 33648 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 42015644632 in words is "forty-two billion, fifteen million, six hundred forty-four thousand, six hundred thirty-two".