172251054845827 has 16 divisors (see below), whose sum is σ = 184181546727360. Its totient is φ = 160520817042432.

The previous prime is 172251054845813. The next prime is 172251054845839. The reversal of 172251054845827 is 728548450152271.

It is not a de Polignac number, because 172251054845827 - 2²³ = 172251046457219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172251054845867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484199 + ... + 19094767.

It is an arithmetic number, because the mean of its divisors is an integer number (11511346670460).

Almost surely, 2^{172251054845827} is an apocalyptic number.

172251054845827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

172251054845827 is a deficient number, since it is larger than the sum of its proper divisors (11930491881533).

172251054845827 is a wasteful number, since it uses less digits than its factorization.

172251054845827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14617422.

The product of its (nonzero) digits is 50176000, while the sum is 61.

The spelling of 172251054845827 in words is "one hundred seventy-two trillion, two hundred fifty-one billion, fifty-four million, eight hundred forty-five thousand, eight hundred twenty-seven".