1856220136703 has 2 divisors, whose sum is σ = 1856220136704. Its totient is φ = 1856220136702.

The previous prime is 1856220136657. The next prime is 1856220136723. The reversal of 1856220136703 is 3076310226581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1856220136703 - 2¹⁴ = 1856220120319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1856220136723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 928110068351 + 928110068352.

It is an arithmetic number, because the mean of its divisors is an integer number (928110068352).

Almost surely, 2^{1856220136703} is an apocalyptic number.

1856220136703 is a deficient number, since it is larger than the sum of its proper divisors (1).

1856220136703 is an equidigital number, since it uses as much as digits as its factorization.

1856220136703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 1856220136703 in words is "one trillion, eight hundred fifty-six billion, two hundred twenty million, one hundred thirty-six thousand, seven hundred three".