42015455544 has 32 divisors (see below), whose sum is σ = 105055503120. Its totient is φ = 14002903296.

The previous prime is 42015455543. The next prime is 42015455623. The reversal of 42015455544 is 44555451024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015455543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15604 + ... + 290300.

Almost surely, 2^42015455544 is an apocalyptic number.

It is an amenable number.

42015455544 is an abundant number, since it is smaller than the sum of its proper divisors (63040047576).

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

42015455544 is a wasteful number, since it uses less digits than its factorization.

42015455544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281079 (or 281075 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 39.

The spelling of 42015455544 in words is "forty-two billion, fifteen million, four hundred fifty-five thousand, five hundred forty-four".