1260779359 has 12 divisors (see below), whose sum is σ = 1475412624. Its totient is φ = 1074189984.

The previous prime is 1260779327. The next prime is 1260779363. The reversal of 1260779359 is 9539770621.

It is not a de Polignac number, because 1260779359 - 2⁵ = 1260779327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260779159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68854 + ... + 85219.

It is an arithmetic number, because the mean of its divisors is an integer number (122951052).

Almost surely, 2^1260779359 is an apocalyptic number.

1260779359 is a deficient number, since it is larger than the sum of its proper divisors (214633265).

1260779359 is a wasteful number, since it uses less digits than its factorization.

1260779359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154254 (or 154247 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 1260779359 is about 35507.4549777930. The cubic root of 1260779359 is about 1080.3049433249.

The spelling of 1260779359 in words is "one billion, two hundred sixty million, seven hundred seventy-nine thousand, three hundred fifty-nine".