172054877623 has 4 divisors (see below), whose sum is σ = 172055733568. Its totient is φ = 172054021680.

The previous prime is 172054877593. The next prime is 172054877651. The reversal of 172054877623 is 326778450271.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 172054877623 - 2³⁷ = 34615924151 is a prime.

It is a super-2 number, since 2×172054877623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172054877723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55915 + ... + 589267.

It is an arithmetic number, because the mean of its divisors is an integer number (43013933392).

Almost surely, 2^172054877623 is an apocalyptic number.

172054877623 is a deficient number, since it is larger than the sum of its proper divisors (855945).

172054877623 is an equidigital number, since it uses as much as digits as its factorization.

172054877623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855944.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 172054877623 in words is "one hundred seventy-two billion, fifty-four million, eight hundred seventy-seven thousand, six hundred twenty-three".