123465064736 has 24 divisors (see below), whose sum is σ = 261769681404. Its totient is φ = 56983875840.

The previous prime is 123465064733. The next prime is 123465064769. The reversal of 123465064736 is 637460564321.

It can be written as a sum of positive squares in 2 ways, for example, as 120422880400 + 3042184336 = 347020^2 + 55156^2 .

It is not an unprimeable number, because it can be changed into a prime (123465064733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148395095 + ... + 148395926.

Almost surely, 2^123465064736 is an apocalyptic number.

123465064736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123465064736 is an abundant number, since it is smaller than the sum of its proper divisors (138304616668).

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

123465064736 is a wasteful number, since it uses less digits than its factorization.

123465064736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296791044 (or 296791036 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 123465064736 in words is "one hundred twenty-three billion, four hundred sixty-five million, sixty-four thousand, seven hundred thirty-six".