397170190480728 has 128 divisors (see below), whose sum is σ = 1184128097817600. Its totient is φ = 108541736557056.

The previous prime is 397170190480717. The next prime is 397170190480769. The reversal of 397170190480728 is 827084091071793.

It is a congruent number.

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, 261736578 + ... + 263249646.

It is an arithmetic number, because the mean of its divisors is an integer number (9251000764200).

Almost surely, 2^{397170190480728} is an apocalyptic number.

It is an amenable number.

397170190480728 is an abundant number, since it is smaller than the sum of its proper divisors (786957907336872).

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

397170190480728 is a wasteful number, since it uses less digits than its factorization.

397170190480728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581041 (or 1581037 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 66.

The spelling of 397170190480728 in words is "three hundred ninety-seven trillion, one hundred seventy billion, one hundred ninety million, four hundred eighty thousand, seven hundred twenty-eight".