7770084112121 has 8 divisors (see below), whose sum is σ = 7771517378664. Its totient is φ = 7768651000320.

The previous prime is 7770084112103. The next prime is 7770084112237. The reversal of 7770084112121 is 1212114800777.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4067784765625 + 3702299346496 = 2016875^2 + 1924136^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7770084112121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7770084111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146134781 + ... + 146187941.

It is an arithmetic number, because the mean of its divisors is an integer number (971439672333).

Almost surely, 2^{7770084112121} is an apocalyptic number.

It is an amenable number.

7770084112121 is a deficient number, since it is larger than the sum of its proper divisors (1433266543).

7770084112121 is a wasteful number, since it uses less digits than its factorization.

7770084112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77371.

The product of its (nonzero) digits is 43904, while the sum is 41.

Adding to 7770084112121 its reverse (1212114800777), we get a palindrome (8982198912898).

The spelling of 7770084112121 in words is "seven trillion, seven hundred seventy billion, eighty-four million, one hundred twelve thousand, one hundred twenty-one".