12690229628 has 6 divisors (see below), whose sum is σ = 22207901856. Its totient is φ = 6345114812.

The previous prime is 12690229603. The next prime is 12690229681. The reversal of 12690229628 is 82692209621.

It is a super-2 number, since 2×12690229628² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586278700 + ... + 1586278707.

It is an arithmetic number, because the mean of its divisors is an integer number (3701316976).

Almost surely, 2^12690229628 is an apocalyptic number.

It is an amenable number.

12690229628 is a deficient number, since it is larger than the sum of its proper divisors (9517672228).

12690229628 is a wasteful number, since it uses less digits than its factorization.

12690229628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172557411 (or 3172557409 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 12690229628 in words is "twelve billion, six hundred ninety million, two hundred twenty-nine thousand, six hundred twenty-eight".