172086747663 has 8 divisors (see below), whose sum is σ = 229510019376. Its totient is φ = 114693987200.

The previous prime is 172086747653. The next prime is 172086747817. The reversal of 172086747663 is 366747680271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172086747663 is a prime.

It is a super-2 number, since 2×172086747663² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172086747653) 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, 7614648 + ... + 7637213.

It is an arithmetic number, because the mean of its divisors is an integer number (28688752422).

Almost surely, 2^172086747663 is an apocalyptic number.

172086747663 is a deficient number, since it is larger than the sum of its proper divisors (57423271713).

172086747663 is a wasteful number, since it uses less digits than its factorization.

172086747663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255625.

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 172086747663 in words is "one hundred seventy-two billion, eighty-six million, seven hundred forty-seven thousand, six hundred sixty-three".