172820280150 has 288 divisors, whose sum is σ = 538926006528. Its totient is φ = 38888467200.

The previous prime is 172820280133. The next prime is 172820280151. The reversal of 172820280150 is 51082028271.

It is a super-2 number, since 2×172820280150² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172820280151) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 86538952 + ... + 86540948.

It is an arithmetic number, because the mean of its divisors is an integer number (1871270856).

Almost surely, 2^172820280150 is an apocalyptic number.

172820280150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172820280150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269463003264).

172820280150 is an abundant number, since it is smaller than the sum of its proper divisors (366105726378).

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

172820280150 is a wasteful number, since it uses less digits than its factorization.

172820280150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 172820280150 in words is "one hundred seventy-two billion, eight hundred twenty million, two hundred eighty thousand, one hundred fifty".