381721627744 has 12 divisors (see below), whose sum is σ = 751514454684. Its totient is φ = 190860813856.

The previous prime is 381721627741. The next prime is 381721627759. The reversal of 381721627744 is 447726127183.

It is a super-2 number, since 2×381721627744² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 381721627691 and 381721627700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381721627741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5964400402 + ... + 5964400465.

It is an arithmetic number, because the mean of its divisors is an integer number (62626204557).

Almost surely, 2^381721627744 is an apocalyptic number.

It is an amenable number.

381721627744 is a deficient number, since it is larger than the sum of its proper divisors (369792826940).

381721627744 is a wasteful number, since it uses less digits than its factorization.

381721627744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928800877 (or 11928800869 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 52.

The spelling of 381721627744 in words is "three hundred eighty-one billion, seven hundred twenty-one million, six hundred twenty-seven thousand, seven hundred forty-four".