61844229233 has 2 divisors, whose sum is σ = 61844229234. Its totient is φ = 61844229232.

The previous prime is 61844229217. The next prime is 61844229277. The reversal of 61844229233 is 33292244816.

It is an a-pointer prime, because the next prime (61844229277) can be obtained adding 61844229233 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61750759009 + 93470224 = 248497^2 + 9668^2 .

It is a cyclic number.

It is not a de Polignac number, because 61844229233 - 2⁴ = 61844229217 is a prime.

It is not a weakly prime, because it can be changed into another prime (61844229533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30922114616 + 30922114617.

It is an arithmetic number, because the mean of its divisors is an integer number (30922114617).

Almost surely, 2^61844229233 is an apocalyptic number.

It is an amenable number.

61844229233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61844229233 is an equidigital number, since it uses as much as digits as its factorization.

61844229233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 44.

The spelling of 61844229233 in words is "sixty-one billion, eight hundred forty-four million, two hundred twenty-nine thousand, two hundred thirty-three".