172988399848 has 32 divisors (see below), whose sum is σ = 369224256960. Its totient is φ = 75212346880.

The previous prime is 172988399839. The next prime is 172988399897. The reversal of 172988399848 is 848993889271.

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, 42732265 + ... + 42736312.

It is an arithmetic number, because the mean of its divisors is an integer number (11538258030).

Almost surely, 2^172988399848 is an apocalyptic number.

It is an amenable number.

172988399848 is an abundant number, since it is smaller than the sum of its proper divisors (196235857112).

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

172988399848 is a wasteful number, since it uses less digits than its factorization.

172988399848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85468617 (or 85468613 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 76.

The spelling of 172988399848 in words is "one hundred seventy-two billion, nine hundred eighty-eight million, three hundred ninety-nine thousand, eight hundred forty-eight".