1263878050 has 12 divisors (see below), whose sum is σ = 2350813266. Its totient is φ = 505551200.

The previous prime is 1263878041. The next prime is 1263878051. The reversal of 1263878050 is 508783621.

It can be written as a sum of positive squares in 3 ways, for example, as 711769041 + 552109009 = 26679^2 + 23497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1263877994 and 1263878012.

It is not an unprimeable number, because it can be changed into a prime (1263878051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12638731 + ... + 12638830.

Almost surely, 2^1263878050 is an apocalyptic number.

1263878050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263878050 is a deficient number, since it is larger than the sum of its proper divisors (1086935216).

1263878050 is a wasteful number, since it uses less digits than its factorization.

1263878050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25277573 (or 25277568 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1263878050 is about 35551.0625720245. The cubic root of 1263878050 is about 1081.1892620721.

The spelling of 1263878050 in words is "one billion, two hundred sixty-three million, eight hundred seventy-eight thousand, fifty".