2100534434515 has 24 divisors (see below), whose sum is σ = 2771138445264. Its totient is φ = 1527376804800.

The previous prime is 2100534434429. The next prime is 2100534434533. The reversal of 2100534434515 is 5154344350012.

It is not a de Polignac number, because 2100534434515 - 2¹³ = 2100534426323 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 2954160 + ... + 3595570.

It is an arithmetic number, because the mean of its divisors is an integer number (115464101886).

Almost surely, 2^{2100534434515} is an apocalyptic number.

2100534434515 is a deficient number, since it is larger than the sum of its proper divisors (670604010749).

2100534434515 is a wasteful number, since it uses less digits than its factorization.

2100534434515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646851 (or 646840 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 2100534434515 its reverse (5154344350012), we get a palindrome (7254878784527).

The spelling of 2100534434515 in words is "two trillion, one hundred billion, five hundred thirty-four million, four hundred thirty-four thousand, five hundred fifteen".