172434104324644 has 48 divisors (see below), whose sum is σ = 320323485453552. Its totient is φ = 80938936184832.

The previous prime is 172434104324597. The next prime is 172434104324663. The reversal of 172434104324644 is 446423401434271.

It can be written as a sum of positive squares in 8 ways, for example, as 20069396492544 + 152364707832100 = 4479888^2 + 12343610^2 .

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, 1571571274 + ... + 1571680990.

It is an arithmetic number, because the mean of its divisors is an integer number (6673405946949).

Almost surely, 2^{172434104324644} is an apocalyptic number.

It is an amenable number.

172434104324644 is a deficient number, since it is larger than the sum of its proper divisors (147889381128908).

172434104324644 is a wasteful number, since it uses less digits than its factorization.

172434104324644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168352 (or 168350 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 49.

The spelling of 172434104324644 in words is "one hundred seventy-two trillion, four hundred thirty-four billion, one hundred four million, three hundred twenty-four thousand, six hundred forty-four".