1263039037653 has 16 divisors (see below), whose sum is σ = 1740493804032. Its totient is φ = 813871320000.

The previous prime is 1263039037651. The next prime is 1263039037661. The reversal of 1263039037653 is 3567309303621.

It is not a de Polignac number, because 1263039037653 - 2¹ = 1263039037651 is a prime.

It is a super-2 number, since 2×1263039037653² (a number of 25 digits) contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8194698 + ... + 8347403.

It is an arithmetic number, because the mean of its divisors is an integer number (108780862752).

Almost surely, 2^{1263039037653} is an apocalyptic number.

It is an amenable number.

1263039037653 is a deficient number, since it is larger than the sum of its proper divisors (477454766379).

1263039037653 is a wasteful number, since it uses less digits than its factorization.

1263039037653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16542956.

The product of its (nonzero) digits is 1837080, while the sum is 48.

The spelling of 1263039037653 in words is "one trillion, two hundred sixty-three billion, thirty-nine million, thirty-seven thousand, six hundred fifty-three".