123537062705 has 12 divisors (see below), whose sum is σ = 172447655220. Its totient is φ = 84711128544.

The previous prime is 123537062699. The next prime is 123537062713. The reversal of 123537062705 is 507260735321.

It can be written as a sum of positive squares in 2 ways, for example, as 42097601329 + 81439461376 = 205177^2 + 285376^2 .

It is not a de Polignac number, because 123537062705 - 2¹⁶ = 123536997169 is a prime.

It is a super-2 number, since 2×123537062705² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252116210 + ... + 252116699.

It is an arithmetic number, because the mean of its divisors is an integer number (14370637935).

Almost surely, 2^123537062705 is an apocalyptic number.

It is an amenable number.

123537062705 is a deficient number, since it is larger than the sum of its proper divisors (48910592515).

123537062705 is an equidigital number, since it uses as much as digits as its factorization.

123537062705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504232928 (or 504232921 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 123537062705 in words is "one hundred twenty-three billion, five hundred thirty-seven million, sixty-two thousand, seven hundred five".