4099978588842 has 16 divisors (see below), whose sum is σ = 9111063530880. Its totient is φ = 1366659529596.

The previous prime is 4099978588837. The next prime is 4099978588861. The reversal of 4099978588842 is 2488858799904.

4099978588842 is a `hidden beast` number, since 409 + 9 + 97 + 8 + 5 + 8 + 88 + 42 = 666.

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, 37962764658 + ... + 37962764765.

It is an arithmetic number, because the mean of its divisors is an integer number (569441470680).

Almost surely, 2^{4099978588842} is an apocalyptic number.

4099978588842 is an abundant number, since it is smaller than the sum of its proper divisors (5011084942038).

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

4099978588842 is a wasteful number, since it uses less digits than its factorization.

4099978588842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75925529434 (or 75925529428 counting only the distinct ones).

The product of its (nonzero) digits is 3344302080, while the sum is 81.

The spelling of 4099978588842 in words is "four trillion, ninety-nine billion, nine hundred seventy-eight million, five hundred eighty-eight thousand, eight hundred forty-two".