1380873611 has 4 divisors (see below), whose sum is σ = 1487094672. Its totient is φ = 1274652552.

The previous prime is 1380873601. The next prime is 1380873623. The reversal of 1380873611 is 1163780831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1163780831 = 2767 ⋅420593.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380873611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380873601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53110511 + ... + 53110536.

It is an arithmetic number, because the mean of its divisors is an integer number (371773668).

Almost surely, 2^1380873611 is an apocalyptic number.

1380873611 is a deficient number, since it is larger than the sum of its proper divisors (106221061).

1380873611 is a wasteful number, since it uses less digits than its factorization.

1380873611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106221060.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1380873611 is about 37160.1077904788. The cubic root of 1380873611 is about 1113.5711650123.

The spelling of 1380873611 in words is "one billion, three hundred eighty million, eight hundred seventy-three thousand, six hundred eleven".