2117578403396 has 12 divisors (see below), whose sum is σ = 3750409943952. Its totient is φ = 1046032705128.

The previous prime is 2117578403387. The next prime is 2117578403407. The reversal of 2117578403396 is 6933048757112.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3189123770 + ... + 3189124433.

It is an arithmetic number, because the mean of its divisors is an integer number (312534161996).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2117578403396 = 4235156806792, but 3⋅2117578403396 = 6352735210188 is not.

Almost surely, 2^{2117578403396} is an apocalyptic number.

It is an amenable number.

2117578403396 is a deficient number, since it is larger than the sum of its proper divisors (1632831540556).

2117578403396 is a wasteful number, since it uses less digits than its factorization.

2117578403396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378248290 (or 6378248288 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 2117578403396 in words is "two trillion, one hundred seventeen billion, five hundred seventy-eight million, four hundred three thousand, three hundred ninety-six".