93720917506 has 16 divisors (see below), whose sum is σ = 141917567616. Its totient is φ = 46417158256.

The previous prime is 93720917501. The next prime is 93720917509. The reversal of 93720917506 is 60571902739.

It is a super-2 number, since 2×93720917506² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 93720917506.

It is not an unprimeable number, because it can be changed into a prime (93720917501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434506 + ... + 613381.

It is an arithmetic number, because the mean of its divisors is an integer number (8869847976).

Almost surely, 2^93720917506 is an apocalyptic number.

93720917506 is a deficient number, since it is larger than the sum of its proper divisors (48196650110).

93720917506 is a wasteful number, since it uses less digits than its factorization.

93720917506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048313.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 93720917506 in words is "ninety-three billion, seven hundred twenty million, nine hundred seventeen thousand, five hundred six".