42145743828 has 12 divisors (see below), whose sum is σ = 98340068960. Its totient is φ = 14048581272.

The previous prime is 42145743803. The next prime is 42145743833. The reversal of 42145743828 is 82834754124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756072648 + ... + 1756072671.

Almost surely, 2^42145743828 is an apocalyptic number.

It is an amenable number.

42145743828 is an abundant number, since it is smaller than the sum of its proper divisors (56194325132).

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

42145743828 is a wasteful number, since it uses less digits than its factorization.

42145743828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512145326 (or 3512145324 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The spelling of 42145743828 in words is "forty-two billion, one hundred forty-five million, seven hundred forty-three thousand, eight hundred twenty-eight".