2064390989121 has 8 divisors (see below), whose sum is σ = 3058357020960. Its totient is φ = 1376260659396.

The previous prime is 2064390989117. The next prime is 2064390989131. The reversal of 2064390989121 is 1219890934602.

2064390989121 is a `hidden beast` number, since 2 + 0 + 6 + 439 + 0 + 9 + 89 + 121 = 666.

It is not a de Polignac number, because 2064390989121 - 2² = 2064390989117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2064390989131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38229462735 + ... + 38229462788.

It is an arithmetic number, because the mean of its divisors is an integer number (382294627620).

Almost surely, 2^{2064390989121} is an apocalyptic number.

It is an amenable number.

2064390989121 is a deficient number, since it is larger than the sum of its proper divisors (993966031839).

2064390989121 is an equidigital number, since it uses as much as digits as its factorization.

2064390989121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76458925532 (or 76458925526 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 2064390989121 in words is "two trillion, sixty-four billion, three hundred ninety million, nine hundred eighty-nine thousand, one hundred twenty-one".