494994497972 has 12 divisors (see below), whose sum is σ = 932874246276. Its totient is φ = 228458999040.

The previous prime is 494994497957. The next prime is 494994497983. The reversal of 494994497972 is 279794499494.

It can be written as a sum of positive squares in 2 ways, for example, as 66789166096 + 428205331876 = 258436^2 + 654374^2 .

It is a super-2 number, since 2×494994497972² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 494994497893 and 494994497902.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4759562429 + ... + 4759562532.

It is an arithmetic number, because the mean of its divisors is an integer number (77739520523).

Almost surely, 2^494994497972 is an apocalyptic number.

It is an amenable number.

494994497972 is a deficient number, since it is larger than the sum of its proper divisors (437879748304).

494994497972 is a wasteful number, since it uses less digits than its factorization.

494994497972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519124978 (or 9519124976 counting only the distinct ones).

The product of its digits is 1481421312, while the sum is 77.

The spelling of 494994497972 in words is "four hundred ninety-four billion, nine hundred ninety-four million, four hundred ninety-seven thousand, nine hundred seventy-two".