1260178755 has 16 divisors (see below), whose sum is σ = 2199585024. Its totient is φ = 610995680.

The previous prime is 1260178753. The next prime is 1260178793. The reversal of 1260178755 is 5578710621.

It is not a de Polignac number, because 1260178755 - 2¹ = 1260178753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260178753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3818559 + ... + 3818888.

It is an arithmetic number, because the mean of its divisors is an integer number (137474064).

Almost surely, 2^1260178755 is an apocalyptic number.

1260178755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1260178755 is a deficient number, since it is larger than the sum of its proper divisors (939406269).

1260178755 is a wasteful number, since it uses less digits than its factorization.

1260178755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637466.

The product of its (nonzero) digits is 117600, while the sum is 42.

The square root of 1260178755 is about 35498.9965351135. The cubic root of 1260178755 is about 1080.1333725891.

The spelling of 1260178755 in words is "one billion, two hundred sixty million, one hundred seventy-eight thousand, seven hundred fifty-five".