747706909607747 has 64 divisors (see below), whose sum is σ = 839956055040000. Its totient is φ = 661431736369152.

The previous prime is 747706909607743. The next prime is 747706909607797.

747706909607747 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 747706909607747 - 2² = 747706909607743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747706909607743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26137186718 + ... + 26137215324.

It is an arithmetic number, because the mean of its divisors is an integer number (13124313360000).

Almost surely, 2^{747706909607747} is an apocalyptic number.

747706909607747 is a deficient number, since it is larger than the sum of its proper divisors (92249145432253).

747706909607747 is a wasteful number, since it uses less digits than its factorization.

747706909607747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30108.

The product of its (nonzero) digits is 5489031744, while the sum is 80.

The spelling of 747706909607747 in words is "seven hundred forty-seven trillion, seven hundred six billion, nine hundred nine million, six hundred seven thousand, seven hundred forty-seven".