381309003648 has 96 divisors (see below), whose sum is σ = 1098265732200. Its totient is φ = 126986081280.

The previous prime is 381309003619. The next prime is 381309003661. The reversal of 381309003648 is 846300903183.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1105138 + ... + 1408526.

Almost surely, 2^381309003648 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 381309003648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549132866100).

381309003648 is an abundant number, since it is smaller than the sum of its proper divisors (716956728552).

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

381309003648 is a wasteful number, since it uses less digits than its factorization.

381309003648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304500 (or 304485 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 381309003648 in words is "three hundred eighty-one billion, three hundred nine million, three thousand, six hundred forty-eight".