987292322506 has 32 divisors (see below), whose sum is σ = 1695027866112. Its totient is φ = 422494082160.

The previous prime is 987292322503. The next prime is 987292322539. The reversal of 987292322506 is 605223292789.

It is a super-2 number, since 2×987292322506² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (987292322503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26092341 + ... + 26130151.

It is an arithmetic number, because the mean of its divisors is an integer number (52969620816).

Almost surely, 2^987292322506 is an apocalyptic number.

987292322506 is a deficient number, since it is larger than the sum of its proper divisors (707735543606).

987292322506 is a wasteful number, since it uses less digits than its factorization.

987292322506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40554.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 987292322506 in words is "nine hundred eighty-seven billion, two hundred ninety-two million, three hundred twenty-two thousand, five hundred six".