87002909836 has 24 divisors (see below), whose sum is σ = 153193662720. Its totient is φ = 43233383952.

The previous prime is 87002909821. The next prime is 87002909839. The reversal of 87002909836 is 63890920078.

It is a super-2 number, since 2×87002909836² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87002909839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7328041 + ... + 7339903.

It is an arithmetic number, because the mean of its divisors is an integer number (6383069280).

Almost surely, 2^87002909836 is an apocalyptic number.

It is an amenable number.

87002909836 is a deficient number, since it is larger than the sum of its proper divisors (66190752884).

87002909836 is a wasteful number, since it uses less digits than its factorization.

87002909836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013 (or 23011 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 87002909836 in words is "eighty-seven billion, two million, nine hundred nine thousand, eight hundred thirty-six".