4311897378544 has 240 divisors, whose sum is σ = 10082099275776. Its totient is φ = 1748143756800.

The previous prime is 4311897378499. The next prime is 4311897378559. The reversal of 4311897378544 is 4458737981134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2380947399 + ... + 2380949209.

Almost surely, 2^{4311897378544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4311897378544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5041049637888).

4311897378544 is an abundant number, since it is smaller than the sum of its proper divisors (5770201897232).

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

4311897378544 is a wasteful number, since it uses less digits than its factorization.

4311897378544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2107 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 64.

The spelling of 4311897378544 in words is "four trillion, three hundred eleven billion, eight hundred ninety-seven million, three hundred seventy-eight thousand, five hundred forty-four".