1618769052 has 36 divisors (see below), whose sum is σ = 4191694416. Its totient is φ = 526428480.

The previous prime is 1618769041. The next prime is 1618769083. The reversal of 1618769052 is 2509678161.

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1618768989 and 1618769007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546888 + ... + 549839.

It is an arithmetic number, because the mean of its divisors is an integer number (116435956).

Almost surely, 2^1618769052 is an apocalyptic number.

1618769052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1618769052 is an abundant number, since it is smaller than the sum of its proper divisors (2572925364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1618769052 is a wasteful number, since it uses less digits than its factorization.

1618769052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096778 (or 1096773 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1618769052 is about 40233.9291146167. The cubic root of 1618769052 is about 1174.1627479327.

The spelling of 1618769052 in words is "one billion, six hundred eighteen million, seven hundred sixty-nine thousand, fifty-two".