172026545355840 has 112 divisors (see below), whose sum is σ = 624210607458432. Its totient is φ = 39320353222656.

The previous prime is 172026545355817. The next prime is 172026545355901. The reversal of 172026545355840 is 48553545620271.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12799587429 + ... + 12799600868.

Almost surely, 2^{172026545355840} is an apocalyptic number.

172026545355840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172026545355840 is an abundant number, since it is smaller than the sum of its proper divisors (452184062102592).

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

172026545355840 is a wasteful number, since it uses less digits than its factorization.

172026545355840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25599188324 (or 25599188314 counting only the distinct ones).

The product of its (nonzero) digits is 40320000, while the sum is 57.

The spelling of 172026545355840 in words is "one hundred seventy-two trillion, twenty-six billion, five hundred forty-five million, three hundred fifty-five thousand, eight hundred forty".