124456223778 has 16 divisors (see below), whose sum is σ = 248916031776. Its totient is φ = 41484810560.

The previous prime is 124456223737. The next prime is 124456223789. The reversal of 124456223778 is 877322654421.

It is a super-2 number, since 2×124456223778² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124456223778.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564625 + ... + 753467.

It is an arithmetic number, because the mean of its divisors is an integer number (15557251986).

Almost surely, 2^124456223778 is an apocalyptic number.

124456223778 is an abundant number, since it is smaller than the sum of its proper divisors (124459807998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124456223778 is a wasteful number, since it uses less digits than its factorization.

124456223778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298689.

The product of its digits is 4515840, while the sum is 51.

The spelling of 124456223778 in words is "one hundred twenty-four billion, four hundred fifty-six million, two hundred twenty-three thousand, seven hundred seventy-eight".