12690142772 has 24 divisors (see below), whose sum is σ = 22550176320. Its totient is φ = 6247327680.

The previous prime is 12690142771. The next prime is 12690142783. The reversal of 12690142772 is 27724109621.

It is a super-2 number, since 2×12690142772² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690142771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600929 + ... + 621687.

It is an arithmetic number, because the mean of its divisors is an integer number (939590680).

Almost surely, 2^12690142772 is an apocalyptic number.

It is an amenable number.

12690142772 is a deficient number, since it is larger than the sum of its proper divisors (9860033548).

12690142772 is a wasteful number, since it uses less digits than its factorization.

12690142772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23111 (or 23109 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 12690142772 in words is "twelve billion, six hundred ninety million, one hundred forty-two thousand, seven hundred seventy-two".