405135013180 has 24 divisors (see below), whose sum is σ = 850884888672. Its totient is φ = 162034698432.

The previous prime is 405135013169. The next prime is 405135013181. The reversal of 405135013180 is 81310531504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405135013181) 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, 1034007 + ... + 1370926.

It is an arithmetic number, because the mean of its divisors is an integer number (35453537028).

Almost surely, 2^405135013180 is an apocalyptic number.

It is an amenable number.

405135013180 is an abundant number, since it is smaller than the sum of its proper divisors (445749875492).

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

405135013180 is a wasteful number, since it uses less digits than its factorization.

405135013180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413365 (or 2413363 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 405135013180 its reverse (81310531504), we get a palindrome (486445544684).

The spelling of 405135013180 in words is "four hundred five billion, one hundred thirty-five million, thirteen thousand, one hundred eighty".