2857073929989 has 4 divisors (see below), whose sum is σ = 3809431906656. Its totient is φ = 1904715953324.

The previous prime is 2857073929937. The next prime is 2857073930003. The reversal of 2857073929989 is 9899293707582.

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 2857073929989 - 2¹¹ = 2857073927941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857073729989) 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, 476178988329 + ... + 476178988334.

It is an arithmetic number, because the mean of its divisors is an integer number (952357976664).

Almost surely, 2^{2857073929989} is an apocalyptic number.

It is an amenable number.

2857073929989 is a deficient number, since it is larger than the sum of its proper divisors (952357976667).

2857073929989 is an equidigital number, since it uses as much as digits as its factorization.

2857073929989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952357976666.

The product of its (nonzero) digits is 1234517760, while the sum is 78.

The spelling of 2857073929989 in words is "two trillion, eight hundred fifty-seven billion, seventy-three million, nine hundred twenty-nine thousand, nine hundred eighty-nine".