381747114840 has 1024 divisors, whose sum is σ = 1502149017600. Its totient is φ = 75479040000.

The previous prime is 381747114821. The next prime is 381747114841. The reversal of 381747114840 is 48411747183.

It is a self number, because there is not a number n which added to its sum of digits gives 381747114840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381747114841) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1520904715 + ... + 1520904965.

It is an arithmetic number, because the mean of its divisors is an integer number (1466942400).

Almost surely, 2^381747114840 is an apocalyptic number.

381747114840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381747114840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751074508800).

381747114840 is an abundant number, since it is smaller than the sum of its proper divisors (1120401902760).

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

381747114840 is a wasteful number, since it uses less digits than its factorization.

381747114840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The spelling of 381747114840 in words is "three hundred eighty-one billion, seven hundred forty-seven million, one hundred fourteen thousand, eight hundred forty".