20002723437 has 16 divisors (see below), whose sum is σ = 27094403072. Its totient is φ = 13123479600.

The previous prime is 20002723427. The next prime is 20002723441. The reversal of 20002723437 is 73432720002.

It is not a de Polignac number, because 20002723437 - 2¹⁸ = 20002461293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002723427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163908 + ... + 258594.

It is an arithmetic number, because the mean of its divisors is an integer number (1693400192).

Almost surely, 2^20002723437 is an apocalyptic number.

It is an amenable number.

20002723437 is a deficient number, since it is larger than the sum of its proper divisors (7091679635).

20002723437 is a wasteful number, since it uses less digits than its factorization.

20002723437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95808.

The product of its (nonzero) digits is 14112, while the sum is 30.

The spelling of 20002723437 in words is "twenty billion, two million, seven hundred twenty-three thousand, four hundred thirty-seven".