1254991768 has 16 divisors (see below), whose sum is σ = 2367548280. Its totient is φ = 623645568.

The previous prime is 1254991763. The next prime is 1254991813. The reversal of 1254991768 is 8671994521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254991763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479905 + ... + 482512.

Almost surely, 2^1254991768 is an apocalyptic number.

It is an amenable number.

1254991768 is a deficient number, since it is larger than the sum of its proper divisors (1112556512).

1254991768 is a wasteful number, since it uses less digits than its factorization.

1254991768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962586 (or 962582 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The square root of 1254991768 is about 35425.8629817257. The cubic root of 1254991768 is about 1078.6493655729.

The spelling of 1254991768 in words is "one billion, two hundred fifty-four million, nine hundred ninety-one thousand, seven hundred sixty-eight".