501077172749 has 4 divisors (see below), whose sum is σ = 502123263360. Its totient is φ = 500031082140.

The previous prime is 501077172731. The next prime is 501077172751. The reversal of 501077172749 is 947271770105.

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 501077172749 - 2²⁰ = 501076124173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 501077172697 and 501077172706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501077172769) 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, 523044587 + ... + 523045544.

It is an arithmetic number, because the mean of its divisors is an integer number (125530815840).

Almost surely, 2^501077172749 is an apocalyptic number.

It is an amenable number.

501077172749 is a deficient number, since it is larger than the sum of its proper divisors (1046090611).

501077172749 is a wasteful number, since it uses less digits than its factorization.

501077172749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046090610.

The product of its (nonzero) digits is 864360, while the sum is 50.

The spelling of 501077172749 in words is "five hundred one billion, seventy-seven million, one hundred seventy-two thousand, seven hundred forty-nine".