1653864463 has 2 divisors, whose sum is σ = 1653864464. Its totient is φ = 1653864462.

The previous prime is 1653864383. The next prime is 1653864493. The reversal of 1653864463 is 3644683561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1653864463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653864493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826932231 + 826932232.

It is an arithmetic number, because the mean of its divisors is an integer number (826932232).

Almost surely, 2^1653864463 is an apocalyptic number.

1653864463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653864463 is an equidigital number, since it uses as much as digits as its factorization.

1653864463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 46.

The square root of 1653864463 is about 40667.7324546132. The cubic root of 1653864463 is about 1182.5875571615.

The spelling of 1653864463 in words is "one billion, six hundred fifty-three million, eight hundred sixty-four thousand, four hundred sixty-three".