20507423735 has 8 divisors (see below), whose sum is σ = 24625444560. Its totient is φ = 16394914944.

The previous prime is 20507423701. The next prime is 20507423773. The reversal of 20507423735 is 53732470502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20507423735 - 2⁸ = 20507423479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369817 + ... + 1384706.

It is an arithmetic number, because the mean of its divisors is an integer number (3078180570).

Almost surely, 2^20507423735 is an apocalyptic number.

20507423735 is a deficient number, since it is larger than the sum of its proper divisors (4118020825).

20507423735 is a wasteful number, since it uses less digits than its factorization.

20507423735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756017.

The product of its (nonzero) digits is 176400, while the sum is 38.

The spelling of 20507423735 in words is "twenty billion, five hundred seven million, four hundred twenty-three thousand, seven hundred thirty-five".