672529805081 has 2 divisors, whose sum is σ = 672529805082. Its totient is φ = 672529805080.

The previous prime is 672529805069. The next prime is 672529805093. The reversal of 672529805081 is 180508925276.

It is a balanced prime because it is at equal distance from previous prime (672529805069) and next prime (672529805093).

It can be written as a sum of positive squares in only one way, i.e., 355115879056 + 317413926025 = 595916^2 + 563395^2 .

It is a cyclic number.

It is not a de Polignac number, because 672529805081 - 2¹⁰ = 672529804057 is a prime.

It is a super-2 number, since 2×672529805081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672529805681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336264902540 + 336264902541.

It is an arithmetic number, because the mean of its divisors is an integer number (336264902541).

Almost surely, 2^672529805081 is an apocalyptic number.

It is an amenable number.

672529805081 is a deficient number, since it is larger than the sum of its proper divisors (1).

672529805081 is an equidigital number, since it uses as much as digits as its factorization.

672529805081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 672529805081 in words is "six hundred seventy-two billion, five hundred twenty-nine million, eight hundred five thousand, eighty-one".