12618204789524 has 6 divisors (see below), whose sum is σ = 22081858381674. Its totient is φ = 6309102394760.

The previous prime is 12618204789517. The next prime is 12618204789539. The reversal of 12618204789524 is 42598740281621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6635621440900 + 5982583348624 = 2575970^2 + 2445932^2 .

It is a super-2 number, since 2×12618204789524² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577275598687 + ... + 1577275598694.

It is an arithmetic number, because the mean of its divisors is an integer number (3680309730279).

Almost surely, 2^{12618204789524} is an apocalyptic number.

It is an amenable number.

12618204789524 is a deficient number, since it is larger than the sum of its proper divisors (9463653592150).

12618204789524 is a wasteful number, since it uses less digits than its factorization.

12618204789524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154551197385 (or 3154551197383 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 12618204789524 in words is "twelve trillion, six hundred eighteen billion, two hundred four million, seven hundred eighty-nine thousand, five hundred twenty-four".