87672292443881 has 2 divisors, whose sum is σ = 87672292443882. Its totient is φ = 87672292443880.

The previous prime is 87672292443817. The next prime is 87672292443917. The reversal of 87672292443881 is 18834429227678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45254426033881 + 42417866410000 = 6727141^2 + 6512900^2 .

It is a cyclic number.

It is not a de Polignac number, because 87672292443881 - 2⁶ = 87672292443817 is a prime.

It is a super-2 number, since 2×87672292443881² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87672292443481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43836146221940 + 43836146221941.

It is an arithmetic number, because the mean of its divisors is an integer number (43836146221941).

Almost surely, 2^{87672292443881} is an apocalyptic number.

It is an amenable number.

87672292443881 is a deficient number, since it is larger than the sum of its proper divisors (1).

87672292443881 is an equidigital number, since it uses as much as digits as its factorization.

87672292443881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 520224768, while the sum is 71.

The spelling of 87672292443881 in words is "eighty-seven trillion, six hundred seventy-two billion, two hundred ninety-two million, four hundred forty-three thousand, eight hundred eighty-one".