87240856058 has 8 divisors (see below), whose sum is σ = 130883629140. Its totient is φ = 43612979680.

The previous prime is 87240856009. The next prime is 87240856063. The reversal of 87240856058 is 85065804278.

It can be written as a sum of positive squares in 2 ways, for example, as 79007652889 + 8233203169 = 281083^2 + 90737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87240856058² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3709523 + ... + 3732966.

Almost surely, 2^87240856058 is an apocalyptic number.

87240856058 is a deficient number, since it is larger than the sum of its proper divisors (43642773082).

87240856058 is a wasteful number, since it uses less digits than its factorization.

87240856058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448352.

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 87240856058 in words is "eighty-seven billion, two hundred forty million, eight hundred fifty-six thousand, fifty-eight".