1260278767 has 24 divisors (see below), whose sum is σ = 1455552000. Its totient is φ = 1088274000.

The previous prime is 1260278753. The next prime is 1260278771. The reversal of 1260278767 is 7678720621.

It is not a de Polignac number, because 1260278767 - 2⁷ = 1260278639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260278737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418734 + ... + 421732.

It is an arithmetic number, because the mean of its divisors is an integer number (60648000).

Almost surely, 2^1260278767 is an apocalyptic number.

1260278767 is a deficient number, since it is larger than the sum of its proper divisors (195273233).

1260278767 is a wasteful number, since it uses less digits than its factorization.

1260278767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 1260278767 is about 35500.4051667020. The cubic root of 1260278767 is about 1080.1619461653.

The spelling of 1260278767 in words is "one billion, two hundred sixty million, two hundred seventy-eight thousand, seven hundred sixty-seven".