172851628340 has 48 divisors (see below), whose sum is σ = 371919727872. Its totient is φ = 67449038976.

The previous prime is 172851628259. The next prime is 172851628357. The reversal of 172851628340 is 43826158271.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

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, 10907 + ... + 588066.

It is an arithmetic number, because the mean of its divisors is an integer number (7748327664).

Almost surely, 2^172851628340 is an apocalyptic number.

172851628340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172851628340 is an abundant number, since it is smaller than the sum of its proper divisors (199068099532).

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

172851628340 is a wasteful number, since it uses less digits than its factorization.

172851628340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599336 (or 599334 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 172851628340 in words is "one hundred seventy-two billion, eight hundred fifty-one million, six hundred twenty-eight thousand, three hundred forty".