20356413734 has 16 divisors (see below), whose sum is σ = 32940792288. Its totient is φ = 9398742912.

The previous prime is 20356413713. The next prime is 20356413739. The reversal of 20356413734 is 43731465302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20356413739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5646482 + ... + 5650085.

It is an arithmetic number, because the mean of its divisors is an integer number (2058799518).

Almost surely, 2^20356413734 is an apocalyptic number.

20356413734 is a deficient number, since it is larger than the sum of its proper divisors (12584378554).

20356413734 is a wasteful number, since it uses less digits than its factorization.

20356413734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296639.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 20356413734 in words is "twenty billion, three hundred fifty-six million, four hundred thirteen thousand, seven hundred thirty-four".