6121828949 has 2 divisors, whose sum is σ = 6121828950. Its totient is φ = 6121828948.

The previous prime is 6121828931. The next prime is 6121828981. The reversal of 6121828949 is 9498281216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3431850724 + 2689978225 = 58582^2 + 51865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6121828949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6121828897 and 6121828906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6121828249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060914474 + 3060914475.

It is an arithmetic number, because the mean of its divisors is an integer number (3060914475).

Almost surely, 2^6121828949 is an apocalyptic number.

It is an amenable number.

6121828949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6121828949 is an equidigital number, since it uses as much as digits as its factorization.

6121828949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 50.

The square root of 6121828949 is about 78242.1174879617. The cubic root of 6121828949 is about 1829.3370496202.

The spelling of 6121828949 in words is "six billion, one hundred twenty-one million, eight hundred twenty-eight thousand, nine hundred forty-nine".