9159873199402 has 4 divisors (see below), whose sum is σ = 13739809799106. Its totient is φ = 4579936599700.

The previous prime is 9159873199369. The next prime is 9159873199403. The reversal of 9159873199402 is 2049913789519.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5975722031841 + 3184151167561 = 2444529^2 + 1784419^2 .

It is not an unprimeable number, because it can be changed into a prime (9159873199403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289968299849 + ... + 2289968299852.

Almost surely, 2^{9159873199402} is an apocalyptic number.

9159873199402 is a deficient number, since it is larger than the sum of its proper divisors (4579936599704).

9159873199402 is a wasteful number, since it uses less digits than its factorization.

9159873199402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579936599703.

The product of its (nonzero) digits is 44089920, while the sum is 67.

The spelling of 9159873199402 in words is "nine trillion, one hundred fifty-nine billion, eight hundred seventy-three million, one hundred ninety-nine thousand, four hundred two".