387623666544 has 80 divisors (see below), whose sum is σ = 1039980713760. Its totient is φ = 124303196160.

The previous prime is 387623666501. The next prime is 387623666561. The reversal of 387623666544 is 445666326783.

It is a congruent number.

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, 1068097 + ... + 1384224.

It is an arithmetic number, because the mean of its divisors is an integer number (12999758922).

Almost surely, 2^387623666544 is an apocalyptic number.

It is an amenable number.

387623666544 is an abundant number, since it is smaller than the sum of its proper divisors (652357047216).

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

387623666544 is a wasteful number, since it uses less digits than its factorization.

387623666544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452458 (or 2452452 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 60.

The spelling of 387623666544 in words is "three hundred eighty-seven billion, six hundred twenty-three million, six hundred sixty-six thousand, five hundred forty-four".