1253600239973 has 2 divisors, whose sum is σ = 1253600239974. Its totient is φ = 1253600239972.

The previous prime is 1253600239961. The next prime is 1253600239999. The reversal of 1253600239973 is 3799320063521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1237329196609 + 16271043364 = 1112353^2 + 127558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253600239973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253600239273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626800119986 + 626800119987.

It is an arithmetic number, because the mean of its divisors is an integer number (626800119987).

Almost surely, 2^{1253600239973} is an apocalyptic number.

It is an amenable number.

1253600239973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253600239973 is an equidigital number, since it uses as much as digits as its factorization.

1253600239973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 50.

The spelling of 1253600239973 in words is "one trillion, two hundred fifty-three billion, six hundred million, two hundred thirty-nine thousand, nine hundred seventy-three".