20830704457486 has 32 divisors (see below), whose sum is σ = 40212771747840. Its totient is φ = 7854056978400.

The previous prime is 20830704457483. The next prime is 20830704457487. The reversal of 20830704457486 is 68475440703802.

It is a self number, because there is not a number n which added to its sum of digits gives 20830704457486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830704457483) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2181677721 + ... + 2181687268.

It is an arithmetic number, because the mean of its divisors is an integer number (1256649117120).

Almost surely, 2^{20830704457486} is an apocalyptic number.

20830704457486 is a deficient number, since it is larger than the sum of its proper divisors (19382067290354).

20830704457486 is a wasteful number, since it uses less digits than its factorization.

20830704457486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363365040.

The product of its (nonzero) digits is 36126720, while the sum is 58.

The spelling of 20830704457486 in words is "twenty trillion, eight hundred thirty billion, seven hundred four million, four hundred fifty-seven thousand, four hundred eighty-six".