1254783647653 has 2 divisors, whose sum is σ = 1254783647654. Its totient is φ = 1254783647652.

The previous prime is 1254783647603. The next prime is 1254783647701. The reversal of 1254783647653 is 3567463874521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004080153444 + 250703494209 = 1002038^2 + 500703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254783647653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254783647591 and 1254783647600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254783647603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627391823826 + 627391823827.

It is an arithmetic number, because the mean of its divisors is an integer number (627391823827).

Almost surely, 2^{1254783647653} is an apocalyptic number.

It is an amenable number.

1254783647653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254783647653 is an equidigital number, since it uses as much as digits as its factorization.

1254783647653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101606400, while the sum is 61.

The spelling of 1254783647653 in words is "one trillion, two hundred fifty-four billion, seven hundred eighty-three million, six hundred forty-seven thousand, six hundred fifty-three".