385542210728 has 32 divisors (see below), whose sum is σ = 732801897000. Its totient is φ = 190138967040.

The previous prime is 385542210709. The next prime is 385542210733. The reversal of 385542210728 is 827012245583.

It can be written as a sum of positive squares in 4 ways, for example, as 287787185764 + 97755024964 = 536458^2 + 312658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370763 + ... + 953178.

Almost surely, 2^385542210728 is an apocalyptic number.

It is an amenable number.

385542210728 is a deficient number, since it is larger than the sum of its proper divisors (347259686272).

385542210728 is a wasteful number, since it uses less digits than its factorization.

385542210728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324445 (or 1324441 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 385542210728 in words is "three hundred eighty-five billion, five hundred forty-two million, two hundred ten thousand, seven hundred twenty-eight".