499549545460 has 144 divisors (see below), whose sum is σ = 1340625283200. Its totient is φ = 152714778624.

The previous prime is 499549545457. The next prime is 499549545463. The reversal of 499549545460 is 64545945994.

It is an interprime number because it is at equal distance from previous prime (499549545457) and next prime (499549545463).

It is a super-2 number, since 2×499549545460² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 499549545392 and 499549545401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499549545463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443826 + ... + 1093654.

It is an arithmetic number, because the mean of its divisors is an integer number (9309897800).

Almost surely, 2^499549545460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499549545460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670312641600).

499549545460 is an abundant number, since it is smaller than the sum of its proper divisors (841075737740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499549545460 is a wasteful number, since it uses less digits than its factorization.

499549545460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649898 (or 649879 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 64.

The spelling of 499549545460 in words is "four hundred ninety-nine billion, five hundred forty-nine million, five hundred forty-five thousand, four hundred sixty".