61890235223 has 2 divisors, whose sum is σ = 61890235224. Its totient is φ = 61890235222.

The previous prime is 61890235153. The next prime is 61890235243. The reversal of 61890235223 is 32253209816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61890235223 - 2¹⁰ = 61890234199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61890235243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30945117611 + 30945117612.

It is an arithmetic number, because the mean of its divisors is an integer number (30945117612).

Almost surely, 2^61890235223 is an apocalyptic number.

61890235223 is a deficient number, since it is larger than the sum of its proper divisors (1).

61890235223 is an equidigital number, since it uses as much as digits as its factorization.

61890235223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 61890235223 in words is "sixty-one billion, eight hundred ninety million, two hundred thirty-five thousand, two hundred twenty-three".