8020377890544 has 40 divisors (see below), whose sum is σ = 20725590441600. Its totient is φ = 2672648859328.

The previous prime is 8020377890519. The next prime is 8020377890573. The reversal of 8020377890544 is 4450987730208.

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, 25166172 + ... + 25482875.

It is an arithmetic number, because the mean of its divisors is an integer number (518139761040).

Almost surely, 2^{8020377890544} is an apocalyptic number.

It is an amenable number.

8020377890544 is an abundant number, since it is smaller than the sum of its proper divisors (12705212551056).

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

8020377890544 is a wasteful number, since it uses less digits than its factorization.

8020377890544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50652357 (or 50652351 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 8020377890544 in words is "eight trillion, twenty billion, three hundred seventy-seven million, eight hundred ninety thousand, five hundred forty-four".