4161819311544 has 32 divisors (see below), whose sum is σ = 10404802797840. Its totient is φ = 1387239168000.

The previous prime is 4161819311527. The next prime is 4161819311579. The reversal of 4161819311544 is 4451139181614.

It is a junction number, because it is equal to n+sod(n) for n = 4161819311493 and 4161819311502.

It is a congruent number.

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, 1109607 + ... + 3091094.

Almost surely, 2^{4161819311544} is an apocalyptic number.

It is an amenable number.

4161819311544 is an abundant number, since it is smaller than the sum of its proper divisors (6242983486296).

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

4161819311544 is a wasteful number, since it uses less digits than its factorization.

4161819311544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241991 (or 4241987 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The spelling of 4161819311544 in words is "four trillion, one hundred sixty-one billion, eight hundred nineteen million, three hundred eleven thousand, five hundred forty-four".