6736720737385 has 16 divisors (see below), whose sum is σ = 8086660869456. Its totient is φ = 5387646254848.

The previous prime is 6736720737323. The next prime is 6736720737413. The reversal of 6736720737385 is 5837370276376.

It can be written as a sum of positive squares in 8 ways, for example, as 748109094489 + 5988611642896 = 864933^2 + 2447164^2 .

It is a cyclic number.

It is not a de Polignac number, because 6736720737385 - 2²⁹ = 6736183866473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269058087 + ... + 269083123.

It is an arithmetic number, because the mean of its divisors is an integer number (505416304341).

Almost surely, 2^{6736720737385} is an apocalyptic number.

It is an amenable number.

6736720737385 is a deficient number, since it is larger than the sum of its proper divisors (1349940132071).

6736720737385 is a wasteful number, since it uses less digits than its factorization.

6736720737385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40172.

The product of its (nonzero) digits is 186701760, while the sum is 64.

The spelling of 6736720737385 in words is "six trillion, seven hundred thirty-six billion, seven hundred twenty million, seven hundred thirty-seven thousand, three hundred eighty-five".