172140352671 has 16 divisors (see below), whose sum is σ = 262316908800. Its totient is φ = 98362990848.

The previous prime is 172140352669. The next prime is 172140352721. The reversal of 172140352671 is 176253041271.

It is not a de Polignac number, because 172140352671 - 2¹ = 172140352669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172140352661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744340 + ... + 947798.

It is an arithmetic number, because the mean of its divisors is an integer number (16394806800).

Almost surely, 2^172140352671 is an apocalyptic number.

172140352671 is a deficient number, since it is larger than the sum of its proper divisors (90176556129).

172140352671 is a wasteful number, since it uses less digits than its factorization.

172140352671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243758.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 172140352671 in words is "one hundred seventy-two billion, one hundred forty million, three hundred fifty-two thousand, six hundred seventy-one".