2123896420386 has 96 divisors (see below), whose sum is σ = 4970218479408. Its totient is φ = 651602465280.

The previous prime is 2123896420361. The next prime is 2123896420433. The reversal of 2123896420386 is 6830246983212.

2123896420386 is a `hidden beast` number, since 2 + 1 + 238 + 9 + 6 + 4 + 20 + 386 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 681541058025 + 1442355362361 = 825555^2 + 1200981^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122639400 + ... + 122656716.

Almost surely, 2^{2123896420386} is an apocalyptic number.

2123896420386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2123896420386 is an abundant number, since it is smaller than the sum of its proper divisors (2846322059022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123896420386 is a wasteful number, since it uses less digits than its factorization.

2123896420386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18836 (or 18833 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 2123896420386 in words is "two trillion, one hundred twenty-three billion, eight hundred ninety-six million, four hundred twenty thousand, three hundred eighty-six".