122758945040 has 40 divisors (see below), whose sum is σ = 286025800320. Its totient is φ = 48998416256.

The previous prime is 122758945037. The next prime is 122758945069. The reversal of 122758945040 is 40549857221.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1605560 + ... + 1680279.

It is an arithmetic number, because the mean of its divisors is an integer number (7150645008).

Almost surely, 2^122758945040 is an apocalyptic number.

122758945040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122758945040 is an abundant number, since it is smaller than the sum of its proper divisors (163266855280).

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

122758945040 is a wasteful number, since it uses less digits than its factorization.

122758945040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286319 (or 3286313 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 122758945040 in words is "one hundred twenty-two billion, seven hundred fifty-eight million, nine hundred forty-five thousand, forty".