1552243786234 has 4 divisors (see below), whose sum is σ = 2328365679354. Its totient is φ = 776121893116.

The previous prime is 1552243786213. The next prime is 1552243786237. The reversal of 1552243786234 is 4326873422551.

It is a happy number.

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., 851679808225 + 700563978009 = 922865^2 + 836997^2 .

It is not an unprimeable number, because it can be changed into a prime (1552243786237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388060946557 + ... + 388060946560.

Almost surely, 2^{1552243786234} is an apocalyptic number.

1552243786234 is a deficient number, since it is larger than the sum of its proper divisors (776121893120).

1552243786234 is an equidigital number, since it uses as much as digits as its factorization.

1552243786234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776121893119.

The product of its digits is 9676800, while the sum is 52.

The spelling of 1552243786234 in words is "one trillion, five hundred fifty-two billion, two hundred forty-three million, seven hundred eighty-six thousand, two hundred thirty-four".