8408406062820 has 24 divisors (see below), whose sum is σ = 23543536976064. Its totient is φ = 2242241616736.

The previous prime is 8408406062783. The next prime is 8408406062827. The reversal of 8408406062820 is 282606048048.

It is a self number, because there is not a number n which added to its sum of digits gives 8408406062820.

It is not an unprimeable number, because it can be changed into a prime (8408406062827) 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, 70070050464 + ... + 70070050583.

It is an arithmetic number, because the mean of its divisors is an integer number (980980707336).

Almost surely, 2^{8408406062820} is an apocalyptic number.

It is an amenable number.

8408406062820 is an abundant number, since it is smaller than the sum of its proper divisors (15135130913244).

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

8408406062820 is a wasteful number, since it uses less digits than its factorization.

8408406062820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140140101059 (or 140140101057 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 8408406062820 in words is "eight trillion, four hundred eight billion, four hundred six million, sixty-two thousand, eight hundred twenty".