9999872745701 has 32 divisors (see below), whose sum is σ = 10881722839680. Its totient is φ = 9157862246400.

The previous prime is 9999872745661. The next prime is 9999872745743. The reversal of 9999872745701 is 1075472789999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999872745701 is a prime.

It is a super-2 number, since 2×9999872745701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999872745761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315208826 + ... + 315240548.

It is an arithmetic number, because the mean of its divisors is an integer number (340053838740).

Almost surely, 2^{9999872745701} is an apocalyptic number.

It is an amenable number.

9999872745701 is a deficient number, since it is larger than the sum of its proper divisors (881850093979).

9999872745701 is a wasteful number, since it uses less digits than its factorization.

9999872745701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35477.

The product of its (nonzero) digits is 720135360, while the sum is 77.

The spelling of 9999872745701 in words is "nine trillion, nine hundred ninety-nine billion, eight hundred seventy-two million, seven hundred forty-five thousand, seven hundred one".