61368242043 has 16 divisors (see below), whose sum is σ = 82304497440. Its totient is φ = 40672402176.

The previous prime is 61368242021. The next prime is 61368242059. The reversal of 61368242043 is 34024286316.

It is not a de Polignac number, because 61368242043 - 2⁵ = 61368242011 is a prime.

It is a super-2 number, since 2×61368242043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61368241992 and 61368242010.

It is not an unprimeable number, because it can be changed into a prime (61368242003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721521 + ... + 802077.

It is an arithmetic number, because the mean of its divisors is an integer number (5144031090).

Almost surely, 2^61368242043 is an apocalyptic number.

61368242043 is a deficient number, since it is larger than the sum of its proper divisors (20936255397).

61368242043 is a wasteful number, since it uses less digits than its factorization.

61368242043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82046.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 61368242043 in words is "sixty-one billion, three hundred sixty-eight million, two hundred forty-two thousand, forty-three".