2146990091434 has 16 divisors (see below), whose sum is σ = 3226234478472. Its totient is φ = 1071579138048.

The previous prime is 2146990091357. The next prime is 2146990091471. The reversal of 2146990091434 is 4341900996412.

It can be written as a sum of positive squares in 4 ways, for example, as 1267234261225 + 879755830209 = 1125715^2 + 937953^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8049882 + ... + 8312314.

Almost surely, 2^{2146990091434} is an apocalyptic number.

2146990091434 is a deficient number, since it is larger than the sum of its proper divisors (1079244387038).

2146990091434 is a wasteful number, since it uses less digits than its factorization.

2146990091434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269721.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 2146990091434 in words is "two trillion, one hundred forty-six billion, nine hundred ninety million, ninety-one thousand, four hundred thirty-four".