1722456542272 has 28 divisors (see below), whose sum is σ = 3597894424720. Its totient is φ = 815900466816.

The previous prime is 1722456542237. The next prime is 1722456542281. The reversal of 1722456542272 is 2722456542271.

It is a super-2 number, since 2×1722456542272² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708245718 + ... + 708248149.

Almost surely, 2^{1722456542272} is an apocalyptic number.

It is an amenable number.

1722456542272 is an abundant number, since it is smaller than the sum of its proper divisors (1875437882448).

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

1722456542272 is a wasteful number, since it uses less digits than its factorization.

1722456542272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416493898 (or 1416493888 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 49.

Subtracting 1722456542272 from its reverse (2722456542271), we obtain a palindrome (999999999999).

The spelling of 1722456542272 in words is "one trillion, seven hundred twenty-two billion, four hundred fifty-six million, five hundred forty-two thousand, two hundred seventy-two".