381365651200 has 216 divisors, whose sum is σ = 1013562940320. Its totient is φ = 141547929600.

The previous prime is 381365651179. The next prime is 381365651269. The reversal of 381365651200 is 2156563183.

It is a super-2 number, since 2×381365651200² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7700116 + ... + 7749484.

It is an arithmetic number, because the mean of its divisors is an integer number (4692421020).

Almost surely, 2^381365651200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381365651200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506781470160).

381365651200 is an abundant number, since it is smaller than the sum of its proper divisors (632197289120).

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

381365651200 is a wasteful number, since it uses less digits than its factorization.

381365651200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49483 (or 49464 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 381365651200 in words is "three hundred eighty-one billion, three hundred sixty-five million, six hundred fifty-one thousand, two hundred".