73784326004 has 6 divisors (see below), whose sum is σ = 129122570514. Its totient is φ = 36892163000.

The previous prime is 73784325997. The next prime is 73784326009. The reversal of 73784326004 is 40062348737.

It can be written as a sum of positive squares in only one way, i.e., 73554864100 + 229461904 = 271210^2 + 15148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73784326009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9223040747 + ... + 9223040754.

It is an arithmetic number, because the mean of its divisors is an integer number (21520428419).

Almost surely, 2^73784326004 is an apocalyptic number.

It is an amenable number.

73784326004 is a deficient number, since it is larger than the sum of its proper divisors (55338244510).

73784326004 is a wasteful number, since it uses less digits than its factorization.

73784326004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18446081505 (or 18446081503 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 73784326004 in words is "seventy-three billion, seven hundred eighty-four million, three hundred twenty-six thousand, four".