1630172206473 has 8 divisors (see below), whose sum is σ = 2173597655328. Its totient is φ = 1086764114304.

The previous prime is 1630172206451. The next prime is 1630172206501. The reversal of 1630172206473 is 3746022710361.

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

It is not a de Polignac number, because 1630172206473 - 2¹⁰ = 1630172205449 is a prime.

It is a super-2 number, since 2×1630172206473² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1630172206433) 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, 4118415 + ... + 4496852.

It is an arithmetic number, because the mean of its divisors is an integer number (271699706916).

Almost surely, 2^{1630172206473} is an apocalyptic number.

It is an amenable number.

1630172206473 is a deficient number, since it is larger than the sum of its proper divisors (543425448855).

1630172206473 is an equidigital number, since it uses as much as digits as its factorization.

1630172206473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678343.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 1630172206473 in words is "one trillion, six hundred thirty billion, one hundred seventy-two million, two hundred six thousand, four hundred seventy-three".