172761300061 has 16 divisors (see below), whose sum is σ = 204399555840. Its totient is φ = 142870049280.

The previous prime is 172761300029. The next prime is 172761300073. The reversal of 172761300061 is 160003167271.

It is not a de Polignac number, because 172761300061 - 2⁵ = 172761300029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172761300001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33780 + ... + 588781.

It is an arithmetic number, because the mean of its divisors is an integer number (12774972240).

Almost surely, 2^172761300061 is an apocalyptic number.

It is an amenable number.

172761300061 is a deficient number, since it is larger than the sum of its proper divisors (31638255779).

172761300061 is a wasteful number, since it uses less digits than its factorization.

172761300061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623964.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 172761300061 in words is "one hundred seventy-two billion, seven hundred sixty-one million, three hundred thousand, sixty-one".