12653631340 has 24 divisors (see below), whose sum is σ = 30368715552. Its totient is φ = 4338387840.

The previous prime is 12653631299. The next prime is 12653631373. The reversal of 12653631340 is 4313635621.

It is a super-2 number, since 2×12653631340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12653631296 and 12653631305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45191401 + ... + 45191680.

It is an arithmetic number, because the mean of its divisors is an integer number (1265363148).

Almost surely, 2^12653631340 is an apocalyptic number.

12653631340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12653631340 is an abundant number, since it is smaller than the sum of its proper divisors (17715084212).

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

12653631340 is a wasteful number, since it uses less digits than its factorization.

12653631340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90383097 (or 90383095 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 12653631340 in words is "twelve billion, six hundred fifty-three million, six hundred thirty-one thousand, three hundred forty".