5217192778472 has 8 divisors (see below), whose sum is σ = 9782236459650. Its totient is φ = 2608596389232.

The previous prime is 5217192778403. The next prime is 5217192778507. The reversal of 5217192778472 is 2748772917125.

It can be written as a sum of positive squares in only one way, i.e., 3401420358436 + 1815772420036 = 1844294^2 + 1347506^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 326074548647 + ... + 326074548662.

Almost surely, 2^{5217192778472} is an apocalyptic number.

It is an amenable number.

5217192778472 is a deficient number, since it is larger than the sum of its proper divisors (4565043681178).

5217192778472 is a wasteful number, since it uses less digits than its factorization.

5217192778472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652149097315 (or 652149097311 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 62.

The spelling of 5217192778472 in words is "five trillion, two hundred seventeen billion, one hundred ninety-two million, seven hundred seventy-eight thousand, four hundred seventy-two".