3402120730845 has 8 divisors (see below), whose sum is σ = 5443393169376. Its totient is φ = 1814464389776.

The previous prime is 3402120730819. The next prime is 3402120730847. The reversal of 3402120730845 is 5480370212043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3402120730845 - 2³⁶ = 3333401254109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402120730847) 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, 113404024347 + ... + 113404024376.

It is an arithmetic number, because the mean of its divisors is an integer number (680424146172).

Almost surely, 2^{3402120730845} is an apocalyptic number.

It is an amenable number.

3402120730845 is a deficient number, since it is larger than the sum of its proper divisors (2041272438531).

3402120730845 is a wasteful number, since it uses less digits than its factorization.

3402120730845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226808048731.

The product of its (nonzero) digits is 161280, while the sum is 39.

Adding to 3402120730845 its reverse (5480370212043), we get a palindrome (8882490942888).

The spelling of 3402120730845 in words is "three trillion, four hundred two billion, one hundred twenty million, seven hundred thirty thousand, eight hundred forty-five".