73690399509 has 8 divisors (see below), whose sum is σ = 98257036320. Its totient is φ = 49125347856.

The previous prime is 73690399487. The next prime is 73690399567. The reversal of 73690399509 is 90599309637.

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

It is not a de Polignac number, because 73690399509 - 2⁷ = 73690399381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73690399009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283207 + ... + 477060.

It is an arithmetic number, because the mean of its divisors is an integer number (12282129540).

Almost surely, 2^73690399509 is an apocalyptic number.

It is an amenable number.

73690399509 is a deficient number, since it is larger than the sum of its proper divisors (24566636811).

73690399509 is a wasteful number, since it uses less digits than its factorization.

73690399509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792579.

The product of its (nonzero) digits is 12400290, while the sum is 60.

The spelling of 73690399509 in words is "seventy-three billion, six hundred ninety million, three hundred ninety-nine thousand, five hundred nine".