12465434650 has 24 divisors (see below), whose sum is σ = 23217407964. Its totient is φ = 4979356800.

The previous prime is 12465434629. The next prime is 12465434651. The reversal of 12465434650 is 5643456421.

It can be written as a sum of positive squares in 6 ways, for example, as 11227309681 + 1238124969 = 105959^2 + 35187^2 .

It is a super-2 number, since 2×12465434650² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12465434651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133411 + ... + 206710.

Almost surely, 2^12465434650 is an apocalyptic number.

12465434650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12465434650 is a deficient number, since it is larger than the sum of its proper divisors (10751973314).

12465434650 is a wasteful number, since it uses less digits than its factorization.

12465434650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340866 (or 340861 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 12465434650 in words is "twelve billion, four hundred sixty-five million, four hundred thirty-four thousand, six hundred fifty".