381969725280 has 768 divisors, whose sum is σ = 1481640781824. Its totient is φ = 81392762880.

The previous prime is 381969725279. The next prime is 381969725299. The reversal of 381969725280 is 82527969183.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 494138974 + ... + 494139746.

It is an arithmetic number, because the mean of its divisors is an integer number (1929219768).

Almost surely, 2^381969725280 is an apocalyptic number.

381969725280 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 381969725280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740820390912).

381969725280 is an abundant number, since it is smaller than the sum of its proper divisors (1099671056544).

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

381969725280 is a wasteful number, since it uses less digits than its factorization.

381969725280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 381969725280 in words is "three hundred eighty-one billion, nine hundred sixty-nine million, seven hundred twenty-five thousand, two hundred eighty".