123537065450 has 12 divisors (see below), whose sum is σ = 229778941830. Its totient is φ = 49414826160.

The previous prime is 123537065429. The next prime is 123537065521. The reversal of 123537065450 is 54560735321.

It can be written as a sum of positive squares in 3 ways, for example, as 63680017801 + 59857047649 = 252349^2 + 244657^2 .

It is a super-2 number, since 2×123537065450² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123537065398 and 123537065407.

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 5 ways as a sum of consecutive naturals, for example, 1235370605 + ... + 1235370704.

Almost surely, 2^123537065450 is an apocalyptic number.

123537065450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123537065450 is a deficient number, since it is larger than the sum of its proper divisors (106241876380).

123537065450 is a wasteful number, since it uses less digits than its factorization.

123537065450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470741321 (or 2470741316 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 123537065450 in words is "one hundred twenty-three billion, five hundred thirty-seven million, sixty-five thousand, four hundred fifty".