9890118139457 has 16 divisors (see below), whose sum is σ = 10249986626880. Its totient is φ = 9531507988800.

The previous prime is 9890118139441. The next prime is 9890118139519. The reversal of 9890118139457 is 7549318110989.

It is a cyclic number.

It is not a de Polignac number, because 9890118139457 - 2⁴ = 9890118139441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9890118139393 and 9890118139402.

It is not an unprimeable number, because it can be changed into a prime (9890118132457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267260318 + ... + 267297320.

It is an arithmetic number, because the mean of its divisors is an integer number (640624164180).

Almost surely, 2^{9890118139457} is an apocalyptic number.

It is an amenable number.

9890118139457 is a deficient number, since it is larger than the sum of its proper divisors (359868487423).

9890118139457 is a wasteful number, since it uses less digits than its factorization.

9890118139457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53744.

The product of its (nonzero) digits is 19595520, while the sum is 65.

The spelling of 9890118139457 in words is "nine trillion, eight hundred ninety billion, one hundred eighteen million, one hundred thirty-nine thousand, four hundred fifty-seven".