1263039037652 has 24 divisors (see below), whose sum is σ = 2526433210560. Its totient is φ = 541226344320.

The previous prime is 1263039037651. The next prime is 1263039037661. The reversal of 1263039037652 is 2567309303621.

It is a happy number.

It is a super-2 number, since 2×1263039037652² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263039037597 and 1263039037606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263039037651) 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, 2967902 + ... + 3366677.

It is an arithmetic number, because the mean of its divisors is an integer number (105268050440).

Almost surely, 2^{1263039037652} is an apocalyptic number.

It is an amenable number.

1263039037652 is an abundant number, since it is smaller than the sum of its proper divisors (1263394172908).

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

1263039037652 is a wasteful number, since it uses less digits than its factorization.

1263039037652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341711 (or 6341709 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 1263039037652 in words is "one trillion, two hundred sixty-three billion, thirty-nine million, thirty-seven thousand, six hundred fifty-two".