6154344949 has 2 divisors, whose sum is σ = 6154344950. Its totient is φ = 6154344948.

The previous prime is 6154344919. The next prime is 6154345007. The reversal of 6154344949 is 9494434516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5301296100 + 853048849 = 72810^2 + 29207^2 .

It is a cyclic number.

It is not a de Polignac number, because 6154344949 - 2¹⁹ = 6153820661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6154344919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077172474 + 3077172475.

It is an arithmetic number, because the mean of its divisors is an integer number (3077172475).

Almost surely, 2^6154344949 is an apocalyptic number.

It is an amenable number.

6154344949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6154344949 is an equidigital number, since it uses as much as digits as its factorization.

6154344949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The square root of 6154344949 is about 78449.6331986326. The cubic root of 6154344949 is about 1832.5701639836.

The spelling of 6154344949 in words is "six billion, one hundred fifty-four million, three hundred forty-four thousand, nine hundred forty-nine".