1263906633051 has 24 divisors (see below), whose sum is σ = 1933425265824. Its totient is φ = 792878803200.

The previous prime is 1263906633049. The next prime is 1263906633071. The reversal of 1263906633051 is 1503366093621.

1263906633051 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 9 + 0 + 6 + 633 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 1263906633051 - 2¹ = 1263906633049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1263906632988 and 1263906633006.

It is not an unprimeable number, because it can be changed into a prime (1263906633001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76756 + ... + 1591761.

It is an arithmetic number, because the mean of its divisors is an integer number (80559386076).

Almost surely, 2^{1263906633051} is an apocalyptic number.

1263906633051 is a deficient number, since it is larger than the sum of its proper divisors (669518632773).

1263906633051 is a wasteful number, since it uses less digits than its factorization.

1263906633051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673491 (or 1673488 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 1263906633051 in words is "one trillion, two hundred sixty-three billion, nine hundred six million, six hundred thirty-three thousand, fifty-one".