20785458702 has 16 divisors (see below), whose sum is σ = 41591613312. Its totient is φ = 6925036920.

The previous prime is 20785458653. The next prime is 20785458781.

20785458702 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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, 849258 + ... + 873389.

It is an arithmetic number, because the mean of its divisors is an integer number (2599475832).

Almost surely, 2^20785458702 is an apocalyptic number.

20785458702 is an abundant number, since it is smaller than the sum of its proper divisors (20806154610).

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

20785458702 is a wasteful number, since it uses less digits than its factorization.

20785458702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724663.

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 20785458702 in words is "twenty billion, seven hundred eighty-five million, four hundred fifty-eight thousand, seven hundred two".