381654490608 has 40 divisors (see below), whose sum is σ = 1095489742800. Its totient is φ = 127218163392.

The previous prime is 381654490513. The next prime is 381654490619. The reversal of 381654490608 is 806094456183.

381654490608 is a `hidden beast` number, since 3 + 8 + 1 + 6 + 544 + 90 + 6 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 441729303 + ... + 441730166.

It is an arithmetic number, because the mean of its divisors is an integer number (27387243570).

Almost surely, 2^381654490608 is an apocalyptic number.

It is an amenable number.

381654490608 is an abundant number, since it is smaller than the sum of its proper divisors (713835252192).

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

381654490608 is a wasteful number, since it uses less digits than its factorization.

381654490608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883459486 (or 883459474 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 381654490608 in words is "three hundred eighty-one billion, six hundred fifty-four million, four hundred ninety thousand, six hundred eight".