61468019 has 2 divisors, whose sum is σ = 61468020. Its totient is φ = 61468018.

The previous prime is 61468007. The next prime is 61468049. The reversal of 61468019 is 91086416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61468019 - 2⁴ = 61468003 is a prime.

It is a super-2 number, since 2×61468019² = 7556634719568722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61468019.

It is not a weakly prime, because it can be changed into another prime (61468049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30734009 + 30734010.

It is an arithmetic number, because the mean of its divisors is an integer number (30734010).

Almost surely, 2^61468019 is an apocalyptic number.

61468019 is a deficient number, since it is larger than the sum of its proper divisors (1).

61468019 is an equidigital number, since it uses as much as digits as its factorization.

61468019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 61468019 is about 7840.1542714413. The cubic root of 61468019 is about 394.6539061069.

The spelling of 61468019 in words is "sixty-one million, four hundred sixty-eight thousand, nineteen".