1452302378642 has 4 divisors (see below), whose sum is σ = 2178453567966. Its totient is φ = 726151189320.

The previous prime is 1452302378633. The next prime is 1452302378647. The reversal of 1452302378642 is 2468732032541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1430155283881 + 22147094761 = 1195891^2 + 148819^2 .

It is a super-2 number, since 2×1452302378642² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1452302378647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363075594659 + ... + 363075594662.

Almost surely, 2^{1452302378642} is an apocalyptic number.

1452302378642 is a deficient number, since it is larger than the sum of its proper divisors (726151189324).

1452302378642 is an equidigital number, since it uses as much as digits as its factorization.

1452302378642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726151189323.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 1452302378642 in words is "one trillion, four hundred fifty-two billion, three hundred two million, three hundred seventy-eight thousand, six hundred forty-two".