73648877399 has 4 divisors (see below), whose sum is σ = 73665654480. Its totient is φ = 73632100320.

The previous prime is 73648877381. The next prime is 73648877429. The reversal of 73648877399 is 99377884637.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73648877399 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 (73648177399) 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 in 3 ways as a sum of consecutive naturals, for example, 8381954 + ... + 8390735.

It is an arithmetic number, because the mean of its divisors is an integer number (18416413620).

Almost surely, 2^73648877399 is an apocalyptic number.

73648877399 is a deficient number, since it is larger than the sum of its proper divisors (16777081).

73648877399 is a wasteful number, since it uses less digits than its factorization.

73648877399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16777080.

The product of its digits is 384072192, while the sum is 71.

The spelling of 73648877399 in words is "seventy-three billion, six hundred forty-eight million, eight hundred seventy-seven thousand, three hundred ninety-nine".