1377918289 has 32 divisors (see below), whose sum is σ = 1624869504. Its totient is φ = 1154580480.

The previous prime is 1377918253. The next prime is 1377918299. The reversal of 1377918289 is 9828197731.

It is a cyclic number.

It is not a de Polignac number, because 1377918289 - 2¹³ = 1377910097 is a prime.

It is a super-2 number, since 2×1377918289² = 3797317622321375042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377918239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2634382 + ... + 2634904.

It is an arithmetic number, because the mean of its divisors is an integer number (50777172).

Almost surely, 2^1377918289 is an apocalyptic number.

It is an amenable number.

1377918289 is a deficient number, since it is larger than the sum of its proper divisors (246951215).

1377918289 is a wasteful number, since it uses less digits than its factorization.

1377918289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its digits is 1524096, while the sum is 55.

The square root of 1377918289 is about 37120.3217793165. The cubic root of 1377918289 is about 1112.7761823084.

The spelling of 1377918289 in words is "one billion, three hundred seventy-seven million, nine hundred eighteen thousand, two hundred eighty-nine".