381550061346 has 32 divisors (see below), whose sum is σ = 807493598208. Its totient is φ = 119940208080.

The previous prime is 381550061327. The next prime is 381550061359. The reversal of 381550061346 is 643160055183.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 381550061298 and 381550061307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19461016 + ... + 19480611.

It is an arithmetic number, because the mean of its divisors is an integer number (25234174944).

Almost surely, 2^381550061346 is an apocalyptic number.

381550061346 is an abundant number, since it is smaller than the sum of its proper divisors (425943536862).

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

381550061346 is a wasteful number, since it uses less digits than its factorization.

381550061346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38941726.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 381550061346 in words is "three hundred eighty-one billion, five hundred fifty million, sixty-one thousand, three hundred forty-six".