44721397747867 has 2 divisors, whose sum is σ = 44721397747868. Its totient is φ = 44721397747866.

The previous prime is 44721397747837. The next prime is 44721397747963. The reversal of 44721397747867 is 76874779312744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44721397747867 - 2¹¹ = 44721397745819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44721397747793 and 44721397747802.

It is not a weakly prime, because it can be changed into another prime (44721397747837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22360698873933 + 22360698873934.

It is an arithmetic number, because the mean of its divisors is an integer number (22360698873934).

Almost surely, 2^{44721397747867} is an apocalyptic number.

44721397747867 is a deficient number, since it is larger than the sum of its proper divisors (1).

44721397747867 is an equidigital number, since it uses as much as digits as its factorization.

44721397747867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2788079616, while the sum is 76.

The spelling of 44721397747867 in words is "forty-four trillion, seven hundred twenty-one billion, three hundred ninety-seven million, seven hundred forty-seven thousand, eight hundred sixty-seven".