405545355870 has 16 divisors (see below), whose sum is σ = 973308854160. Its totient is φ = 108145428224.

The previous prime is 405545355857. The next prime is 405545355877. The reversal of 405545355870 is 78553545504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405545355877) 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, 6759089235 + ... + 6759089294.

It is an arithmetic number, because the mean of its divisors is an integer number (60831803385).

Almost surely, 2^405545355870 is an apocalyptic number.

405545355870 is an abundant number, since it is smaller than the sum of its proper divisors (567763498290).

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

405545355870 is a wasteful number, since it uses less digits than its factorization.

405545355870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13518178539.

The product of its (nonzero) digits is 8400000, while the sum is 51.

The spelling of 405545355870 in words is "four hundred five billion, five hundred forty-five million, three hundred fifty-five thousand, eight hundred seventy".