1263763875 has 32 divisors (see below), whose sum is σ = 2294083584. Its totient is φ = 612732000.

The previous prime is 1263763873. The next prime is 1263763933. The reversal of 1263763875 is 5783673621.

It is not a de Polignac number, because 1263763875 - 2¹ = 1263763873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1263763873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149059 + ... + 157308.

It is an arithmetic number, because the mean of its divisors is an integer number (71690112).

Almost surely, 2^1263763875 is an apocalyptic number.

1263763875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1263763875 is a deficient number, since it is larger than the sum of its proper divisors (1030319709).

1263763875 is a wasteful number, since it uses less digits than its factorization.

1263763875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306396 (or 306386 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 1263763875 is about 35549.4567469040. The cubic root of 1263763875 is about 1081.1567039463.

The spelling of 1263763875 in words is "one billion, two hundred sixty-three million, seven hundred sixty-three thousand, eight hundred seventy-five".