501669676749 has 16 divisors (see below), whose sum is σ = 678904623360. Its totient is φ = 329468325120.

The previous prime is 501669676741. The next prime is 501669676751. The reversal of 501669676749 is 947676966105.

It is a happy number.

It is not a de Polignac number, because 501669676749 - 2³ = 501669676741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501669676749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501669676741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3394272 + ... + 3538985.

It is an arithmetic number, because the mean of its divisors is an integer number (42431538960).

Almost surely, 2^501669676749 is an apocalyptic number.

It is an amenable number.

501669676749 is a deficient number, since it is larger than the sum of its proper divisors (177234946611).

501669676749 is a wasteful number, since it uses less digits than its factorization.

501669676749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933620.

The product of its (nonzero) digits is 102876480, while the sum is 66.

The spelling of 501669676749 in words is "five hundred one billion, six hundred sixty-nine million, six hundred seventy-six thousand, seven hundred forty-nine".