172426503320 has 16 divisors (see below), whose sum is σ = 387959632560. Its totient is φ = 68970601312.

The previous prime is 172426503317. The next prime is 172426503341. The reversal of 172426503320 is 23305624271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2155331252 + ... + 2155331331.

It is an arithmetic number, because the mean of its divisors is an integer number (24247477035).

Almost surely, 2^172426503320 is an apocalyptic number.

172426503320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172426503320 is an abundant number, since it is smaller than the sum of its proper divisors (215533129240).

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

172426503320 is a wasteful number, since it uses less digits than its factorization.

172426503320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310662594 (or 4310662590 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 172426503320 in words is "one hundred seventy-two billion, four hundred twenty-six million, five hundred three thousand, three hundred twenty".