7131685254736 has 160 divisors (see below), whose sum is σ = 16869400289280. Its totient is φ = 2855924697600.

The previous prime is 7131685254731. The next prime is 7131685254779. The reversal of 7131685254736 is 6374525861317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131685254731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16616895 + ... + 17040673.

It is an arithmetic number, because the mean of its divisors is an integer number (105433751808).

Almost surely, 2^{7131685254736} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7131685254736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8434700144640).

7131685254736 is an abundant number, since it is smaller than the sum of its proper divisors (9737715034544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7131685254736 is a wasteful number, since it uses less digits than its factorization.

7131685254736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423993 (or 423987 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 58.

The spelling of 7131685254736 in words is "seven trillion, one hundred thirty-one billion, six hundred eighty-five million, two hundred fifty-four thousand, seven hundred thirty-six".