42000515120 has 40 divisors (see below), whose sum is σ = 99108690864. Its totient is φ = 16549454592.

The previous prime is 42000515101. The next prime is 42000515177. The reversal of 42000515120 is 2151500024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×42000515120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42000515092 and 42000515101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3912599 + ... + 3923318.

Almost surely, 2^42000515120 is an apocalyptic number.

42000515120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42000515120 is an abundant number, since it is smaller than the sum of its proper divisors (57108175744).

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

42000515120 is a wasteful number, since it uses less digits than its factorization.

42000515120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835997 (or 7835991 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The spelling of 42000515120 in words is "forty-two billion, five hundred fifteen thousand, one hundred twenty".