20937293037 has 18 divisors (see below), whose sum is σ = 30700937358. Its totient is φ = 13749837552.

The previous prime is 20937293023. The next prime is 20937293053. The reversal of 20937293037 is 73039273902.

It can be written as a sum of positive squares in only one way, i.e., 16239424356 + 4697868681 = 127434^2 + 68541^2 .

It is not a de Polignac number, because 20937293037 - 2¹² = 20937288941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20937292983 and 20937293001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20937293437) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 218718 + ... + 299519.

It is an arithmetic number, because the mean of its divisors is an integer number (1705607631).

Almost surely, 2^20937293037 is an apocalyptic number.

It is an amenable number.

20937293037 is a deficient number, since it is larger than the sum of its proper divisors (9763644321).

20937293037 is an equidigital number, since it uses as much as digits as its factorization.

20937293037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518377 (or 518307 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 45.

The spelling of 20937293037 in words is "twenty billion, nine hundred thirty-seven million, two hundred ninety-three thousand, thirty-seven".