52918249486 has 16 divisors (see below), whose sum is σ = 81944823168. Its totient is φ = 25603452000.

The previous prime is 52918249481. The next prime is 52918249487. The reversal of 52918249486 is 68494281925.

It is a happy number.

It is a super-2 number, since 2×52918249486² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52918249486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52918249481) 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, 904936 + ... + 961636.

It is an arithmetic number, because the mean of its divisors is an integer number (5121551448).

Almost surely, 2^52918249486 is an apocalyptic number.

52918249486 is a deficient number, since it is larger than the sum of its proper divisors (29026573682).

52918249486 is a wasteful number, since it uses less digits than its factorization.

52918249486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71787.

The product of its digits is 9953280, while the sum is 58.

The spelling of 52918249486 in words is "fifty-two billion, nine hundred eighteen million, two hundred forty-nine thousand, four hundred eighty-six".