12540302650 has 48 divisors (see below), whose sum is σ = 24857051904. Its totient is φ = 4695922880.

The previous prime is 12540302647. The next prime is 12540302657. The reversal of 12540302650 is 5620304521.

It is not an unprimeable number, because it can be changed into a prime (12540302657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61957 + ... + 170056.

It is an arithmetic number, because the mean of its divisors is an integer number (517855248).

Almost surely, 2^12540302650 is an apocalyptic number.

12540302650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12540302650 is a deficient number, since it is larger than the sum of its proper divisors (12316749254).

12540302650 is a wasteful number, since it uses less digits than its factorization.

12540302650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232095 (or 232090 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 12540302650 in words is "twelve billion, five hundred forty million, three hundred two thousand, six hundred fifty".