87711829245 has 12 divisors (see below), whose sum is σ = 152033837436. Its totient is φ = 46779642240.

The previous prime is 87711829243. The next prime is 87711829279. The reversal of 87711829245 is 54292811778.

It can be written as a sum of positive squares in 2 ways, for example, as 48913072569 + 38798756676 = 221163^2 + 196974^2 .

It is not a de Polignac number, because 87711829245 - 2¹ = 87711829243 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87711829191 and 87711829200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87711829243) 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 11 ways as a sum of consecutive naturals, for example, 974575836 + ... + 974575925.

It is an arithmetic number, because the mean of its divisors is an integer number (12669486453).

Almost surely, 2^87711829245 is an apocalyptic number.

It is an amenable number.

87711829245 is a deficient number, since it is larger than the sum of its proper divisors (64322008191).

87711829245 is a wasteful number, since it uses less digits than its factorization.

87711829245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949151772 (or 1949151769 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The spelling of 87711829245 in words is "eighty-seven billion, seven hundred eleven million, eight hundred twenty-nine thousand, two hundred forty-five".