73532149509 has 32 divisors (see below), whose sum is σ = 121912188160. Its totient is φ = 38386317312.

The previous prime is 73532149499. The next prime is 73532149619. The reversal of 73532149509 is 90594123537.

It is not a de Polignac number, because 73532149509 - 2⁵ = 73532149477 is a prime.

It is a super-2 number, since 2×73532149509² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73532149309) 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 31 ways as a sum of consecutive naturals, for example, 1361914 + ... + 1414875.

It is an arithmetic number, because the mean of its divisors is an integer number (3809755880).

Almost surely, 2^73532149509 is an apocalyptic number.

It is an amenable number.

73532149509 is a deficient number, since it is larger than the sum of its proper divisors (48380038651).

73532149509 is a wasteful number, since it uses less digits than its factorization.

73532149509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776909.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 73532149509 in words is "seventy-three billion, five hundred thirty-two million, one hundred forty-nine thousand, five hundred nine".