42544331540 has 48 divisors (see below), whose sum is σ = 90062152320. Its totient is φ = 16881091200.

The previous prime is 42544331519. The next prime is 42544331569. The reversal of 42544331540 is 4513344524.

It is a self number, because there is not a number n which added to its sum of digits gives 42544331540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204051 + ... + 2223269.

It is an arithmetic number, because the mean of its divisors is an integer number (1876294840).

Almost surely, 2^42544331540 is an apocalyptic number.

It is an amenable number.

42544331540 is an abundant number, since it is smaller than the sum of its proper divisors (47517820780).

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

42544331540 is a wasteful number, since it uses less digits than its factorization.

42544331540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20112 (or 20110 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 42544331540 in words is "forty-two billion, five hundred forty-four million, three hundred thirty-one thousand, five hundred forty".