20543962910 has 16 divisors (see below), whose sum is σ = 36991436400. Its totient is φ = 8214851136.

The previous prime is 20543962889. The next prime is 20543962913. The reversal of 20543962910 is 1926934502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20543962913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 310055 + ... + 370434.

It is an arithmetic number, because the mean of its divisors is an integer number (2311964775).

Almost surely, 2^20543962910 is an apocalyptic number.

20543962910 is a deficient number, since it is larger than the sum of its proper divisors (16447473490).

20543962910 is a wasteful number, since it uses less digits than its factorization.

20543962910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683515.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 20543962910 in words is "twenty billion, five hundred forty-three million, nine hundred sixty-two thousand, nine hundred ten".