381929429478 has 16 divisors (see below), whose sum is σ = 780111175680. Its totient is φ = 124601090376.

The previous prime is 381929429477. The next prime is 381929429501. The reversal of 381929429478 is 874924929183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381929429471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677179558 + ... + 677180121.

It is an arithmetic number, because the mean of its divisors is an integer number (48756948480).

Almost surely, 2^381929429478 is an apocalyptic number.

381929429478 is an abundant number, since it is smaller than the sum of its proper divisors (398181746202).

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

381929429478 is a wasteful number, since it uses less digits than its factorization.

381929429478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354359731.

The product of its digits is 62705664, while the sum is 66.

The spelling of 381929429478 in words is "three hundred eighty-one billion, nine hundred twenty-nine million, four hundred twenty-nine thousand, four hundred seventy-eight".