398724773621288 has 64 divisors (see below), whose sum is σ = 792283450392000. Its totient is φ = 187785472089600.

The previous prime is 398724773621267. The next prime is 398724773621347. The reversal of 398724773621288 is 882126377427893.

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, 240197423 + ... + 241851713.

It is an arithmetic number, because the mean of its divisors is an integer number (12379428912375).

Almost surely, 2^{398724773621288} is an apocalyptic number.

It is an amenable number.

398724773621288 is a deficient number, since it is larger than the sum of its proper divisors (393558676770712).

398724773621288 is a wasteful number, since it uses less digits than its factorization.

398724773621288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679706 (or 1679702 counting only the distinct ones).

The product of its digits is 2731180032, while the sum is 77.

The spelling of 398724773621288 in words is "three hundred ninety-eight trillion, seven hundred twenty-four billion, seven hundred seventy-three million, six hundred twenty-one thousand, two hundred eighty-eight".