172607158993 has 8 divisors (see below), whose sum is σ = 173063484360. Its totient is φ = 172150963200.

The previous prime is 172607158991. The next prime is 172607159003. The reversal of 172607158993 is 399851706271.

It can be written as a sum of positive squares in 4 ways, for example, as 22581504 + 172584577489 = 4752^2 + 415433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172607158993 - 2¹ = 172607158991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172607158991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3009973 + ... + 3066781.

It is an arithmetic number, because the mean of its divisors is an integer number (21632935545).

Almost surely, 2^172607158993 is an apocalyptic number.

It is an amenable number.

172607158993 is a deficient number, since it is larger than the sum of its proper divisors (456325367).

172607158993 is an equidigital number, since it uses as much as digits as its factorization.

172607158993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64787.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 172607158993 in words is "one hundred seventy-two billion, six hundred seven million, one hundred fifty-eight thousand, nine hundred ninety-three".