1267618048 has 18 divisors (see below), whose sum is σ = 2530284974. Its totient is φ = 633808896.

The previous prime is 1267618031. The next prime is 1267618057. The reversal of 1267618048 is 8408167621.

It can be written as a sum of positive squares in only one way, i.e., 782209024 + 485409024 = 27968^2 + 22032^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1267617995 and 1267618013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475561 + ... + 2476072.

Almost surely, 2^1267618048 is an apocalyptic number.

It is an amenable number.

1267618048 is a deficient number, since it is larger than the sum of its proper divisors (1262666926).

1267618048 is an frugal number, since it uses more digits than its factorization.

1267618048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951649 (or 4951635 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1267618048 is about 35603.6240851967. The cubic root of 1267618048 is about 1082.2546770052.

The spelling of 1267618048 in words is "one billion, two hundred sixty-seven million, six hundred eighteen thousand, forty-eight".