87029871029 has 4 divisors (see below), whose sum is σ = 88078423776. Its totient is φ = 85981318284.

The previous prime is 87029870999. The next prime is 87029871037. The reversal of 87029871029 is 92017892078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87029871029 - 2²⁰ = 87028822453 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 (87029871059) 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 3 ways as a sum of consecutive naturals, for example, 524276249 + ... + 524276414.

It is an arithmetic number, because the mean of its divisors is an integer number (22019605944).

Almost surely, 2^87029871029 is an apocalyptic number.

It is an amenable number.

87029871029 is a deficient number, since it is larger than the sum of its proper divisors (1048552747).

87029871029 is a wasteful number, since it uses less digits than its factorization.

87029871029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048552746.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 87029871029 in words is "eighty-seven billion, twenty-nine million, eight hundred seventy-one thousand, twenty-nine".