389423780142 has 32 divisors (see below), whose sum is σ = 790529663232. Its totient is φ = 127861191744.

The previous prime is 389423780087. The next prime is 389423780153. The reversal of 389423780142 is 241087324983.

It is a congruent number.

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, 7496743 + ... + 7548509.

It is an arithmetic number, because the mean of its divisors is an integer number (24704051976).

Almost surely, 2^389423780142 is an apocalyptic number.

389423780142 is an abundant number, since it is smaller than the sum of its proper divisors (401105883090).

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

389423780142 is a wasteful number, since it uses less digits than its factorization.

389423780142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70552.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 389423780142 in words is "three hundred eighty-nine billion, four hundred twenty-three million, seven hundred eighty thousand, one hundred forty-two".