6419923950757 has 4 divisors (see below), whose sum is σ = 6507868114540. Its totient is φ = 6331979786976.

The previous prime is 6419923950751. The next prime is 6419923950761. The reversal of 6419923950757 is 7570593299146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1628242352676 + 4791681598081 = 1276026^2 + 2188991^2 .

It is a cyclic number.

It is not a de Polignac number, because 6419923950757 - 2³ = 6419923950749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6419923950692 and 6419923950701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419923950751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43972081782 + ... + 43972081927.

It is an arithmetic number, because the mean of its divisors is an integer number (1626967028635).

Almost surely, 2^{6419923950757} is an apocalyptic number.

It is an amenable number.

6419923950757 is a deficient number, since it is larger than the sum of its proper divisors (87944163783).

6419923950757 is an equidigital number, since it uses as much as digits as its factorization.

6419923950757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87944163782.

The product of its (nonzero) digits is 128595600, while the sum is 67.

The spelling of 6419923950757 in words is "six trillion, four hundred nineteen billion, nine hundred twenty-three million, nine hundred fifty thousand, seven hundred fifty-seven".