8377730953989 has 4 divisors (see below), whose sum is σ = 11170307938656. Its totient is φ = 5585153969324.

The previous prime is 8377730953987. The next prime is 8377730954059. The reversal of 8377730953989 is 9893590377738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8377730953989 - 2¹ = 8377730953987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8377730953987) 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, 1396288492329 + ... + 1396288492334.

It is an arithmetic number, because the mean of its divisors is an integer number (2792576984664).

Almost surely, 2^{8377730953989} is an apocalyptic number.

It is an amenable number.

8377730953989 is a deficient number, since it is larger than the sum of its proper divisors (2792576984667).

8377730953989 is a wasteful number, since it uses less digits than its factorization.

8377730953989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792576984666.

The product of its (nonzero) digits is 2160406080, while the sum is 78.

The spelling of 8377730953989 in words is "eight trillion, three hundred seventy-seven billion, seven hundred thirty million, nine hundred fifty-three thousand, nine hundred eighty-nine".