124564042697 has 4 divisors (see below), whose sum is σ = 124577276880. Its totient is φ = 124550808516.

The previous prime is 124564042679. The next prime is 124564042777. The reversal of 124564042697 is 796240465421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 796240465421 = 3727 ⋅213641123.

It is a cyclic number.

It is not a de Polignac number, because 124564042697 - 2⁶ = 124564042633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124564042667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6602963 + ... + 6621800.

It is an arithmetic number, because the mean of its divisors is an integer number (31144319220).

Almost surely, 2^124564042697 is an apocalyptic number.

It is an amenable number.

124564042697 is a deficient number, since it is larger than the sum of its proper divisors (13234183).

124564042697 is an equidigital number, since it uses as much as digits as its factorization.

124564042697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13234182.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 124564042697 in words is "one hundred twenty-four billion, five hundred sixty-four million, forty-two thousand, six hundred ninety-seven".