381134464460 has 96 divisors (see below), whose sum is σ = 879685349760. Its totient is φ = 138064252928.

The previous prime is 381134464439. The next prime is 381134464493. The reversal of 381134464460 is 64464431183.

It is a super-2 number, since 2×381134464460² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2823017 + ... + 2954943.

It is an arithmetic number, because the mean of its divisors is an integer number (9163389060).

Almost surely, 2^381134464460 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 381134464460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439842674880).

381134464460 is an abundant number, since it is smaller than the sum of its proper divisors (498550885300).

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

381134464460 is a wasteful number, since it uses less digits than its factorization.

381134464460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132275 (or 132273 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 381134464460 in words is "three hundred eighty-one billion, one hundred thirty-four million, four hundred sixty-four thousand, four hundred sixty".