1329777107 has 16 divisors (see below), whose sum is σ = 1420230240. Its totient is φ = 1242834432.

The previous prime is 1329777047. The next prime is 1329777139. The reversal of 1329777107 is 7017779231.

It is a cyclic number.

It is not a de Polignac number, because 1329777107 - 2²⁶ = 1262668243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1329777607) 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, 136193 + ... + 145629.

It is an arithmetic number, because the mean of its divisors is an integer number (88764390).

Almost surely, 2^1329777107 is an apocalyptic number.

1329777107 is a deficient number, since it is larger than the sum of its proper divisors (90453133).

1329777107 is a wasteful number, since it uses less digits than its factorization.

1329777107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622.

The product of its (nonzero) digits is 129654, while the sum is 44.

The square root of 1329777107 is about 36466.1090191975. The cubic root of 1329777107 is about 1099.6630116492.

The spelling of 1329777107 in words is "one billion, three hundred twenty-nine million, seven hundred seventy-seven thousand, one hundred seven".