99997389402235 has 16 divisors (see below), whose sum is σ = 129357011863296. Its totient is φ = 73770159547008.

The previous prime is 99997389402221. The next prime is 99997389402277. The reversal of 99997389402235 is 53220498379999.

It is a cyclic number.

It is not a de Polignac number, because 99997389402235 - 2¹³ = 99997389394043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771460459 + ... + 771590068.

It is an arithmetic number, because the mean of its divisors is an integer number (8084813241456).

Almost surely, 2^{99997389402235} is an apocalyptic number.

99997389402235 is a deficient number, since it is larger than the sum of its proper divisors (29359622461061).

99997389402235 is a wasteful number, since it uses less digits than its factorization.

99997389402235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543051542.

The product of its (nonzero) digits is 2380855680, while the sum is 79.

The spelling of 99997389402235 in words is "ninety-nine trillion, nine hundred ninety-seven billion, three hundred eighty-nine million, four hundred two thousand, two hundred thirty-five".