2143091976508 has 24 divisors (see below), whose sum is σ = 4290021243872. Its totient is φ = 917645713344.

The previous prime is 2143091976449. The next prime is 2143091976511. The reversal of 2143091976508 is 8056791903412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34229691 + ... + 34292242.

It is a 1-persistent number, because it is pandigital, but 2⋅2143091976508 = 4286183953016 is not.

Almost surely, 2^{2143091976508} is an apocalyptic number.

2143091976508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2143091976508 is an abundant number, since it is smaller than the sum of its proper divisors (2146929267364).

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

2143091976508 is a wasteful number, since it uses less digits than its factorization.

2143091976508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68523061 (or 68523059 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 2143091976508 in words is "two trillion, one hundred forty-three billion, ninety-one million, nine hundred seventy-six thousand, five hundred eight".