99973295447385 has 64 divisors (see below), whose sum is σ = 163252513670400. Its totient is φ = 52231856320512.

The previous prime is 99973295447381. The next prime is 99973295447393. The reversal of 99973295447385 is 58374459237999.

It is not a de Polignac number, because 99973295447385 - 2² = 99973295447381 is a prime.

It is a super-2 number, since 2×99973295447385² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99973295447298 and 99973295447307.

It is not an unprimeable number, because it can be changed into a prime (99973295447381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2336512962 + ... + 2336555748.

It is an arithmetic number, because the mean of its divisors is an integer number (2550820526100).

Almost surely, 2^{99973295447385} is an apocalyptic number.

It is an amenable number.

99973295447385 is a deficient number, since it is larger than the sum of its proper divisors (63279218223015).

99973295447385 is a wasteful number, since it uses less digits than its factorization.

99973295447385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59050.

The product of its digits is 18517766400, while the sum is 84.

The spelling of 99973295447385 in words is "ninety-nine trillion, nine hundred seventy-three billion, two hundred ninety-five million, four hundred forty-seven thousand, three hundred eighty-five".