122778444445 has 16 divisors (see below), whose sum is σ = 147883387392. Its totient is φ = 97856911360.

The previous prime is 122778444413. The next prime is 122778444479. The reversal of 122778444445 is 544444877221.

It is not a de Polignac number, because 122778444445 - 2⁵ = 122778444413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122778444392 and 122778444401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3188829 + ... + 3227101.

It is an arithmetic number, because the mean of its divisors is an integer number (9242711712).

Almost surely, 2^122778444445 is an apocalyptic number.

It is an amenable number.

122778444445 is a deficient number, since it is larger than the sum of its proper divisors (25104942947).

122778444445 is a wasteful number, since it uses less digits than its factorization.

122778444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40652.

The product of its digits is 8028160, while the sum is 52.

The spelling of 122778444445 in words is "one hundred twenty-two billion, seven hundred seventy-eight million, four hundred forty-four thousand, four hundred forty-five".