8144377477068 has 48 divisors (see below), whose sum is σ = 21719119209984. Its totient is φ = 2326881500160.

The previous prime is 8144377476979. The next prime is 8144377477147. The reversal of 8144377477068 is 8607747734418.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634753 + ... + 4085543.

It is an arithmetic number, because the mean of its divisors is an integer number (452481650208).

Almost surely, 2^{8144377477068} is an apocalyptic number.

It is an amenable number.

8144377477068 is an abundant number, since it is smaller than the sum of its proper divisors (13574741732916).

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

8144377477068 is a wasteful number, since it uses less digits than its factorization.

8144377477068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478902 (or 3478900 counting only the distinct ones).

The product of its (nonzero) digits is 177020928, while the sum is 66.

The spelling of 8144377477068 in words is "eight trillion, one hundred forty-four billion, three hundred seventy-seven million, four hundred seventy-seven thousand, sixty-eight".