12690942670 has 48 divisors (see below), whose sum is σ = 26640623520. Its totient is φ = 4340153664.

The previous prime is 12690942661. The next prime is 12690942767. The reversal of 12690942670 is 7624909621.

It is a super-2 number, since 2×12690942670² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12690942670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161911 + ... + 227149.

It is an arithmetic number, because the mean of its divisors is an integer number (555012990).

Almost surely, 2^12690942670 is an apocalyptic number.

12690942670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12690942670 is an abundant number, since it is smaller than the sum of its proper divisors (13949680850).

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

12690942670 is a wasteful number, since it uses less digits than its factorization.

12690942670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65657 (or 65650 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 12690942670 in words is "twelve billion, six hundred ninety million, nine hundred forty-two thousand, six hundred seventy".