7400643263057 has 24 divisors (see below), whose sum is σ = 8144635223592. Its totient is φ = 6719555969280.

The previous prime is 7400643263051. The next prime is 7400643263129. The reversal of 7400643263057 is 7503623460047.

It can be written as a sum of positive squares in 4 ways, for example, as 1098379457296 + 6302263805761 = 1048036^2 + 2510431^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7400643263057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7400643263051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349191653 + ... + 349212845.

It is an arithmetic number, because the mean of its divisors is an integer number (339359800983).

Almost surely, 2^{7400643263057} is an apocalyptic number.

It is an amenable number.

7400643263057 is a deficient number, since it is larger than the sum of its proper divisors (743991960535).

7400643263057 is a wasteful number, since it uses less digits than its factorization.

7400643263057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24641 (or 24630 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 7400643263057 in words is "seven trillion, four hundred billion, six hundred forty-three million, two hundred sixty-three thousand, fifty-seven".