1878652368 has 30 divisors (see below), whose sum is σ = 5257617794. Its totient is φ = 626217408.

The previous prime is 1878652361. The next prime is 1878652411. The reversal of 1878652368 is 8632568781.

It can be written as a sum of positive squares in only one way, i.e., 1875582864 + 3069504 = 43308^2 + 1752^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878652361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6522955 + ... + 6523242.

Almost surely, 2^1878652368 is an apocalyptic number.

1878652368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1878652368 is an abundant number, since it is smaller than the sum of its proper divisors (3378965426).

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

1878652368 is a wasteful number, since it uses less digits than its factorization.

1878652368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13046211 (or 13046202 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 1878652368 is about 43343.4235842071. The cubic root of 1878652368 is about 1233.9061857621.

The spelling of 1878652368 in words is "one billion, eight hundred seventy-eight million, six hundred fifty-two thousand, three hundred sixty-eight".