1369052816 has 10 divisors (see below), whose sum is σ = 2652539862. Its totient is φ = 684526400.

The previous prime is 1369052777. The next prime is 1369052819. The reversal of 1369052816 is 6182509631.

It can be written as a sum of positive squares in only one way, i.e., 1017865216 + 351187600 = 31904^2 + 18740^2 .

It is a super-2 number, since 2×1369052816² = 3748611225995059712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1369052819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42782885 + ... + 42782916.

Almost surely, 2^1369052816 is an apocalyptic number.

1369052816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1369052816 is a deficient number, since it is larger than the sum of its proper divisors (1283487046).

1369052816 is an equidigital number, since it uses as much as digits as its factorization.

1369052816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85565809 (or 85565803 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1369052816 is about 37000.7137228459. The cubic root of 1369052816 is about 1110.3845260310.

The spelling of 1369052816 in words is "one billion, three hundred sixty-nine million, fifty-two thousand, eight hundred sixteen".