61309554019441 has 32 divisors (see below), whose sum is σ = 76674290515200. Its totient is φ = 47732786217216.

The previous prime is 61309554019429. The next prime is 61309554019499. The reversal of 61309554019441 is 14491045590316.

61309554019441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61309554019441 - 2¹⁵ = 61309553986673 is a prime.

It is a super-2 number, since 2×61309554019441² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61309554011441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19678566 + ... + 22580191.

It is an arithmetic number, because the mean of its divisors is an integer number (2396071578600).

Almost surely, 2^{61309554019441} is an apocalyptic number.

It is an amenable number.

61309554019441 is a deficient number, since it is larger than the sum of its proper divisors (15364736495759).

61309554019441 is a wasteful number, since it uses less digits than its factorization.

61309554019441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42259033.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 61309554019441 in words is "sixty-one trillion, three hundred nine billion, five hundred fifty-four million, nineteen thousand, four hundred forty-one".