172989626260 has 24 divisors (see below), whose sum is σ = 396303507936. Its totient is φ = 62905318560.

The previous prime is 172989626233. The next prime is 172989626269. The reversal of 172989626260 is 62626989271.

172989626260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172989626195 and 172989626204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172989626269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393158022 + ... + 393158461.

It is an arithmetic number, because the mean of its divisors is an integer number (16512646164).

Almost surely, 2^172989626260 is an apocalyptic number.

172989626260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172989626260 is an abundant number, since it is smaller than the sum of its proper divisors (223313881676).

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

172989626260 is a wasteful number, since it uses less digits than its factorization.

172989626260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786316503 (or 786316501 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 172989626260 in words is "one hundred seventy-two billion, nine hundred eighty-nine million, six hundred twenty-six thousand, two hundred sixty".