4034385661121 has 4 divisors (see below), whose sum is σ = 4035488257200. Its totient is φ = 4033283065044.

The previous prime is 4034385661087. The next prime is 4034385661139. The reversal of 4034385661121 is 1211665834304.

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 a de Polignac number, because none of the positive numbers 2^k-4034385661121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4034385666121) 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, 551292551 + ... + 551299868.

It is an arithmetic number, because the mean of its divisors is an integer number (1008872064300).

Almost surely, 2^{4034385661121} is an apocalyptic number.

It is an amenable number.

4034385661121 is a deficient number, since it is larger than the sum of its proper divisors (1102596079).

4034385661121 is a wasteful number, since it uses less digits than its factorization.

4034385661121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102596078.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 4034385661121 in words is "four trillion, thirty-four billion, three hundred eighty-five million, six hundred sixty-one thousand, one hundred twenty-one".