122746957540 has 24 divisors (see below), whose sum is σ = 257815531512. Its totient is φ = 49089845760.

The previous prime is 122746957537. The next prime is 122746957559. The reversal of 122746957540 is 45759647221.

It can be written as a sum of positive squares in 4 ways, for example, as 28280476224 + 94466481316 = 168168^2 + 307354^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445399 + ... + 666238.

It is an arithmetic number, because the mean of its divisors is an integer number (10742313813).

Almost surely, 2^122746957540 is an apocalyptic number.

122746957540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122746957540 is an abundant number, since it is smaller than the sum of its proper divisors (135068573972).

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

122746957540 is a wasteful number, since it uses less digits than its factorization.

122746957540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117167 (or 1117165 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 122746957540 in words is "one hundred twenty-two billion, seven hundred forty-six million, nine hundred fifty-seven thousand, five hundred forty".