12767742452 has 6 divisors (see below), whose sum is σ = 22343549298. Its totient is φ = 6383871224.

The previous prime is 12767742439. The next prime is 12767742457. The reversal of 12767742452 is 25424776721.

It can be written as a sum of positive squares in only one way, i.e., 6407041936 + 6360700516 = 80044^2 + 79754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12767742397 and 12767742406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12767742457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595967803 + ... + 1595967810.

It is an arithmetic number, because the mean of its divisors is an integer number (3723924883).

Almost surely, 2^12767742452 is an apocalyptic number.

It is an amenable number.

12767742452 is a deficient number, since it is larger than the sum of its proper divisors (9575806846).

12767742452 is a wasteful number, since it uses less digits than its factorization.

12767742452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191935617 (or 3191935615 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 47.

The spelling of 12767742452 in words is "twelve billion, seven hundred sixty-seven million, seven hundred forty-two thousand, four hundred fifty-two".