9994201542657 has 32 divisors (see below), whose sum is σ = 15063066869760. Its totient is φ = 6548062548240.

The previous prime is 9994201542649. The next prime is 9994201542701. The reversal of 9994201542657 is 7562451024999.

9994201542657 is a `hidden beast` number, since 9 + 9 + 9 + 4 + 20 + 1 + 542 + 65 + 7 = 666.

It is not a de Polignac number, because 9994201542657 - 2³ = 9994201542649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9994201542594 and 9994201542603.

It is not an unprimeable number, because it can be changed into a prime (9994201546657) 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, 11246593 + ... + 12102654.

It is an arithmetic number, because the mean of its divisors is an integer number (470720839680).

Almost surely, 2^{9994201542657} is an apocalyptic number.

It is an amenable number.

9994201542657 is a deficient number, since it is larger than the sum of its proper divisors (5068865327103).

9994201542657 is a wasteful number, since it uses less digits than its factorization.

9994201542657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23349530 (or 23349524 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 9994201542657 in words is "nine trillion, nine hundred ninety-four billion, two hundred one million, five hundred forty-two thousand, six hundred fifty-seven".