501577307649 has 12 divisors (see below), whose sum is σ = 790364242512. Its totient is φ = 303986247000.

The previous prime is 501577307633. The next prime is 501577307669. The reversal of 501577307649 is 946703775105.

501577307649 is a `hidden beast` number, since 5 + 0 + 1 + 577 + 3 + 0 + 7 + 64 + 9 = 666.

It is not a de Polignac number, because 501577307649 - 2⁴ = 501577307633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501577307595 and 501577307604.

It is not an unprimeable number, because it can be changed into a prime (501577307669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2533218627 + ... + 2533218824.

It is an arithmetic number, because the mean of its divisors is an integer number (65863686876).

Almost surely, 2^501577307649 is an apocalyptic number.

It is an amenable number.

501577307649 is a deficient number, since it is larger than the sum of its proper divisors (288786934863).

501577307649 is a wasteful number, since it uses less digits than its factorization.

501577307649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066437468 (or 5066437465 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 54.

The spelling of 501577307649 in words is "five hundred one billion, five hundred seventy-seven million, three hundred seven thousand, six hundred forty-nine".