747685657345 has 16 divisors (see below), whose sum is σ = 1002661390080. Its totient is φ = 530508668800.

The previous prime is 747685657343. The next prime is 747685657373. The reversal of 747685657345 is 543756586747.

It is not a de Polignac number, because 747685657345 - 2¹ = 747685657343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747685657343) 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, 165781705 + ... + 165786214.

It is an arithmetic number, because the mean of its divisors is an integer number (62666336880).

Almost surely, 2^747685657345 is an apocalyptic number.

It is an amenable number.

747685657345 is a deficient number, since it is larger than the sum of its proper divisors (254975732735).

747685657345 is a wasteful number, since it uses less digits than its factorization.

747685657345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331567976.

The product of its digits is 592704000, while the sum is 67.

The spelling of 747685657345 in words is "seven hundred forty-seven billion, six hundred eighty-five million, six hundred fifty-seven thousand, three hundred forty-five".