381547436472 has 64 divisors (see below), whose sum is σ = 1071762516000. Its totient is φ = 125753455872.

The previous prime is 381547436447. The next prime is 381547436483. The reversal of 381547436472 is 274634745183.

381547436472 is a `hidden beast` number, since 3 + 81 + 54 + 7 + 43 + 6 + 472 = 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 15 ways as a sum of consecutive naturals, for example, 9904503 + ... + 9942950.

Almost surely, 2^381547436472 is an apocalyptic number.

It is an amenable number.

381547436472 is an abundant number, since it is smaller than the sum of its proper divisors (690215079528).

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

381547436472 is a wasteful number, since it uses less digits than its factorization.

381547436472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847557 (or 19847547 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 54.

The spelling of 381547436472 in words is "three hundred eighty-one billion, five hundred forty-seven million, four hundred thirty-six thousand, four hundred seventy-two".