619144261121 has 16 divisors (see below), whose sum is σ = 667700341440. Its totient is φ = 572218395840.

The previous prime is 619144261091. The next prime is 619144261139. The reversal of 619144261121 is 121162441916.

It is a cyclic number.

It is not a de Polignac number, because 619144261121 - 2³⁴ = 601964391937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (619144261171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209231 + ... + 1132283.

It is an arithmetic number, because the mean of its divisors is an integer number (41731271340).

Almost surely, 2^619144261121 is an apocalyptic number.

It is an amenable number.

619144261121 is a deficient number, since it is larger than the sum of its proper divisors (48556080319).

619144261121 is a wasteful number, since it uses less digits than its factorization.

619144261121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923936.

The product of its digits is 20736, while the sum is 38.

The spelling of 619144261121 in words is "six hundred nineteen billion, one hundred forty-four million, two hundred sixty-one thousand, one hundred twenty-one".