122678124578 has 8 divisors (see below), whose sum is σ = 184248076572. Its totient is φ = 61262099056.

The previous prime is 122678124577. The next prime is 122678124713. The reversal of 122678124578 is 875421876221.

It can be written as a sum of positive squares in 2 ways, for example, as 116815619089 + 5862505489 = 341783^2 + 76567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (122678124577) 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, 38479625 + ... + 38482812.

Almost surely, 2^122678124578 is an apocalyptic number.

122678124578 is a deficient number, since it is larger than the sum of its proper divisors (61569951994).

122678124578 is an equidigital number, since it uses as much as digits as its factorization.

122678124578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76963236.

The product of its digits is 3010560, while the sum is 53.

The spelling of 122678124578 in words is "one hundred twenty-two billion, six hundred seventy-eight million, one hundred twenty-four thousand, five hundred seventy-eight".