87499358566 has 4 divisors (see below), whose sum is σ = 131249037852. Its totient is φ = 43749679282.

The previous prime is 87499358473. The next prime is 87499358567. The reversal of 87499358566 is 66585399478.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×87499358566² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87499358495 and 87499358504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87499358567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21874839640 + ... + 21874839643.

It is an arithmetic number, because the mean of its divisors is an integer number (32812259463).

Almost surely, 2^87499358566 is an apocalyptic number.

87499358566 is a deficient number, since it is larger than the sum of its proper divisors (43749679286).

87499358566 is a wasteful number, since it uses less digits than its factorization.

87499358566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43749679285.

The product of its digits is 391910400, while the sum is 70.

The spelling of 87499358566 in words is "eighty-seven billion, four hundred ninety-nine million, three hundred fifty-eight thousand, five hundred sixty-six".