1265860368 has 60 divisors (see below), whose sum is σ = 3546148528. Its totient is φ = 421536960.

The previous prime is 1265860333. The next prime is 1265860373. The reversal of 1265860368 is 8630685621.

1265860368 is a `hidden beast` number, since 1 + 2 + 6 + 586 + 0 + 3 + 68 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 164871 + ... + 172377.

Almost surely, 2^1265860368 is an apocalyptic number.

1265860368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1265860368 is an abundant number, since it is smaller than the sum of its proper divisors (2280288160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265860368 is a wasteful number, since it uses less digits than its factorization.

1265860368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8692 (or 8683 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1265860368 is about 35578.9315185265. The cubic root of 1265860368 is about 1081.7542272824.

The spelling of 1265860368 in words is "one billion, two hundred sixty-five million, eight hundred sixty thousand, three hundred sixty-eight".