73669815287749 has 8 divisors (see below), whose sum is σ = 73862689143320. Its totient is φ = 73477026201600.

The previous prime is 73669815287737. The next prime is 73669815287863. The reversal of 73669815287749 is 94778251896637.

It can be written as a sum of positive squares in 4 ways, for example, as 83785354849 + 73586029932900 = 289457^2 + 8578230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73669815287749 - 2¹⁷ = 73669815156677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73669815257749) 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 7 ways as a sum of consecutive naturals, for example, 19451772 + ... + 22928389.

It is an arithmetic number, because the mean of its divisors is an integer number (9232836142915).

Almost surely, 2^{73669815287749} is an apocalyptic number.

It is an amenable number.

73669815287749 is a deficient number, since it is larger than the sum of its proper divisors (192873855571).

73669815287749 is a wasteful number, since it uses less digits than its factorization.

73669815287749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42384711.

The product of its digits is 7681443840, while the sum is 82.

The spelling of 73669815287749 in words is "seventy-three trillion, six hundred sixty-nine billion, eight hundred fifteen million, two hundred eighty-seven thousand, seven hundred forty-nine".