61427770223 has 2 divisors, whose sum is σ = 61427770224. Its totient is φ = 61427770222.

The previous prime is 61427770213. The next prime is 61427770303. The reversal of 61427770223 is 32207772416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61427770223 - 2⁴ = 61427770207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61427770213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30713885111 + 30713885112.

It is an arithmetic number, because the mean of its divisors is an integer number (30713885112).

Almost surely, 2^61427770223 is an apocalyptic number.

61427770223 is a deficient number, since it is larger than the sum of its proper divisors (1).

61427770223 is an equidigital number, since it uses as much as digits as its factorization.

61427770223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 61427770223 in words is "sixty-one billion, four hundred twenty-seven million, seven hundred seventy thousand, two hundred twenty-three".