10078077643989 has 4 divisors (see below), whose sum is σ = 13437436858656. Its totient is φ = 6718718429324.

The previous prime is 10078077643973. The next prime is 10078077644039. The reversal of 10078077643989 is 98934677087001.

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 10078077643989 - 2⁴ = 10078077643973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10078077643969) 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, 1679679607329 + ... + 1679679607334.

It is an arithmetic number, because the mean of its divisors is an integer number (3359359214664).

Almost surely, 2^{10078077643989} is an apocalyptic number.

It is an amenable number.

10078077643989 is a deficient number, since it is larger than the sum of its proper divisors (3359359214667).

10078077643989 is an equidigital number, since it uses as much as digits as its factorization.

10078077643989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359359214666.

The product of its (nonzero) digits is 128024064, while the sum is 69.

The spelling of 10078077643989 in words is "ten trillion, seventy-eight billion, seventy-seven million, six hundred forty-three thousand, nine hundred eighty-nine".