1863263136 has 48 divisors (see below), whose sum is σ = 5589791424. Its totient is φ = 532360704.

The previous prime is 1863263119. The next prime is 1863263147. The reversal of 1863263136 is 6313623681.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1863263094 and 1863263103.

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, 1385685 + ... + 1387028.

It is an arithmetic number, because the mean of its divisors is an integer number (116453988).

Almost surely, 2^1863263136 is an apocalyptic number.

1863263136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1863263136 is an abundant number, since it is smaller than the sum of its proper divisors (3726528288).

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

1863263136 is a wasteful number, since it uses less digits than its factorization.

1863263136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772733 (or 2772725 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 1863263136 is about 43165.5318049019. The cubic root of 1863263136 is about 1230.5277079952.

The spelling of 1863263136 in words is "one billion, eight hundred sixty-three million, two hundred sixty-three thousand, one hundred thirty-six".