9886870257201 has 48 divisors (see below), whose sum is σ = 16379385055488. Its totient is φ = 5629523328000.

The previous prime is 9886870257193. The next prime is 9886870257223. The reversal of 9886870257201 is 1027520786889.

It is not a de Polignac number, because 9886870257201 - 2³ = 9886870257193 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (9886870257601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23462596 + ... + 23880266.

It is an arithmetic number, because the mean of its divisors is an integer number (341237188656).

Almost surely, 2^{9886870257201} is an apocalyptic number.

It is an amenable number.

9886870257201 is a deficient number, since it is larger than the sum of its proper divisors (6492514798287).

9886870257201 is a wasteful number, since it uses less digits than its factorization.

9886870257201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419022 (or 419019 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 9886870257201 in words is "nine trillion, eight hundred eighty-six billion, eight hundred seventy million, two hundred fifty-seven thousand, two hundred one".