53287870586618 has 16 divisors (see below), whose sum is σ = 80001806450280. Its totient is φ = 26620611897600.

The previous prime is 53287870586537. The next prime is 53287870586677. The reversal of 53287870586618 is 81668507878235.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44864449836649 + 8423420749969 = 6698093^2 + 2902313^2 .

It is a super-2 number, since 2×53287870586618² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8003108 + ... + 13062368.

Almost surely, 2^{53287870586618} is an apocalyptic number.

53287870586618 is a deficient number, since it is larger than the sum of its proper divisors (26713935863662).

53287870586618 is a wasteful number, since it uses less digits than its factorization.

53287870586618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063873.

The product of its (nonzero) digits is 1083801600, while the sum is 74.

The spelling of 53287870586618 in words is "fifty-three trillion, two hundred eighty-seven billion, eight hundred seventy million, five hundred eighty-six thousand, six hundred eighteen".