1618486652 has 24 divisors (see below), whose sum is σ = 3037683600. Its totient is φ = 752184576.

The previous prime is 1618486621. The next prime is 1618486663. The reversal of 1618486652 is 2566848161.

It is a junction number, because it is equal to n+sod(n) for n = 1618486597 and 1618486606.

It is a congruent number.

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, 196877 + ... + 204932.

It is an arithmetic number, because the mean of its divisors is an integer number (126570150).

Almost surely, 2^1618486652 is an apocalyptic number.

It is an amenable number.

1618486652 is a deficient number, since it is larger than the sum of its proper divisors (1419196948).

1618486652 is a wasteful number, since it uses less digits than its factorization.

1618486652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401885 (or 401883 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 1618486652 is about 40230.4194857573. The cubic root of 1618486652 is about 1174.0944650104.

The spelling of 1618486652 in words is "one billion, six hundred eighteen million, four hundred eighty-six thousand, six hundred fifty-two".