1252643799034 has 8 divisors (see below), whose sum is σ = 1885652410068. Its totient is φ = 624092995680.

The previous prime is 1252643799031. The next prime is 1252643799047. The reversal of 1252643799034 is 4309973462521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1081086301009 + 171557498025 = 1039753^2 + 414195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1252643799031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114451217 + ... + 1114452340.

Almost surely, 2^{1252643799034} is an apocalyptic number.

1252643799034 is a deficient number, since it is larger than the sum of its proper divisors (633008611034).

1252643799034 is a wasteful number, since it uses less digits than its factorization.

1252643799034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228903840.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 1252643799034 in words is "one trillion, two hundred fifty-two billion, six hundred forty-three million, seven hundred ninety-nine thousand, thirty-four".