42002520345 has 12 divisors (see below), whose sum is σ = 72804368676. Its totient is φ = 22401344160.

The previous prime is 42002520337. The next prime is 42002520353. The reversal of 42002520345 is 54302520024.

It is a happy number.

42002520345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42002520337) and next prime (42002520353).

It can be written as a sum of positive squares in 2 ways, for example, as 31022833689 + 10979686656 = 176133^2 + 104784^2 .

It is not a de Polignac number, because 42002520345 - 2³ = 42002520337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466694626 + ... + 466694715.

It is an arithmetic number, because the mean of its divisors is an integer number (6067030723).

Almost surely, 2^42002520345 is an apocalyptic number.

42002520345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42002520345 is a deficient number, since it is larger than the sum of its proper divisors (30801848331).

42002520345 is a wasteful number, since it uses less digits than its factorization.

42002520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933389352 (or 933389349 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The spelling of 42002520345 in words is "forty-two billion, two million, five hundred twenty thousand, three hundred forty-five".