1452742621782 has 16 divisors (see below), whose sum is σ = 2940491090880. Its totient is φ = 478413232712.

The previous prime is 1452742621747. The next prime is 1452742621787. The reversal of 1452742621782 is 2871262472541.

It is a super-2 number, since 2×1452742621782² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452742621787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458576432 + ... + 1458577427.

It is an arithmetic number, because the mean of its divisors is an integer number (183780693180).

Almost surely, 2^{1452742621782} is an apocalyptic number.

1452742621782 is an abundant number, since it is smaller than the sum of its proper divisors (1487748469098).

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

1452742621782 is a wasteful number, since it uses less digits than its factorization.

1452742621782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917153947.

The product of its digits is 3010560, while the sum is 51.

The spelling of 1452742621782 in words is "one trillion, four hundred fifty-two billion, seven hundred forty-two million, six hundred twenty-one thousand, seven hundred eighty-two".