744828420057 has 4 divisors (see below), whose sum is σ = 993104560080. Its totient is φ = 496552280036.

The previous prime is 744828420023. The next prime is 744828420059. The reversal of 744828420057 is 750024828447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 744828420057 - 2¹⁴ = 744828403673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 744828419991 and 744828420009.

It is not an unprimeable number, because it can be changed into a prime (744828420059) 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, 124138070007 + ... + 124138070012.

It is an arithmetic number, because the mean of its divisors is an integer number (248276140020).

Almost surely, 2^744828420057 is an apocalyptic number.

It is an amenable number.

744828420057 is a deficient number, since it is larger than the sum of its proper divisors (248276140023).

744828420057 is a wasteful number, since it uses less digits than its factorization.

744828420057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248276140022.

The product of its (nonzero) digits is 4014080, while the sum is 51.

The spelling of 744828420057 in words is "seven hundred forty-four billion, eight hundred twenty-eight million, four hundred twenty thousand, fifty-seven".