123696435747 has 6 divisors (see below), whose sum is σ = 164929393228. Its totient is φ = 82463884384.

The previous prime is 123696435697. The next prime is 123696435763. The reversal of 123696435747 is 747534696321.

It is a happy number.

It is not a de Polignac number, because 123696435747 - 2³⁰ = 122622693923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123696435767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507643 + ... + 710699.

Almost surely, 2^123696435747 is an apocalyptic number.

123696435747 is a deficient number, since it is larger than the sum of its proper divisors (41232957481).

123696435747 is an frugal number, since it uses more digits than its factorization.

123696435747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406117 (or 203060 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 57.

The spelling of 123696435747 in words is "one hundred twenty-three billion, six hundred ninety-six million, four hundred thirty-five thousand, seven hundred forty-seven".