2787135438053 has 4 divisors (see below), whose sum is σ = 2811800353548. Its totient is φ = 2762470522560.

The previous prime is 2787135437959. The next prime is 2787135438103. The reversal of 2787135438053 is 3508345317872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1246811192449 + 1540324245604 = 1116607^2 + 1241098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2787135438053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2787135438053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787135438653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12332457578 + ... + 12332457803.

It is an arithmetic number, because the mean of its divisors is an integer number (702950088387).

Almost surely, 2^{2787135438053} is an apocalyptic number.

It is an amenable number.

2787135438053 is a deficient number, since it is larger than the sum of its proper divisors (24664915495).

2787135438053 is a wasteful number, since it uses less digits than its factorization.

2787135438053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24664915494.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 2787135438053 in words is "two trillion, seven hundred eighty-seven billion, one hundred thirty-five million, four hundred thirty-eight thousand, fifty-three".