81772060295 has 16 divisors (see below), whose sum is σ = 100532970720. Its totient is φ = 63813734400.

The previous prime is 81772060283. The next prime is 81772060297. The reversal of 81772060295 is 59206027718.

It is a happy number.

It is not a de Polignac number, because 81772060295 - 2²⁰ = 81771011719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81772060297) 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, 1881116 + ... + 1924094.

It is an arithmetic number, because the mean of its divisors is an integer number (6283310670).

Almost surely, 2^81772060295 is an apocalyptic number.

81772060295 is a deficient number, since it is larger than the sum of its proper divisors (18760910425).

81772060295 is a wasteful number, since it uses less digits than its factorization.

81772060295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52306.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 81772060295 in words is "eighty-one billion, seven hundred seventy-two million, sixty thousand, two hundred ninety-five".