10781517053 has 4 divisors (see below), whose sum is σ = 11250278688. Its totient is φ = 10312755420.

The previous prime is 10781517023. The next prime is 10781517059. The reversal of 10781517053 is 35071518701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35071518701 = 67 ⋅523455503.

It is a cyclic number.

It is not a de Polignac number, because 10781517053 - 2¹² = 10781512957 is a prime.

It is a super-2 number, since 2×10781517053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10781516998 and 10781517016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10781517059) 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, 234380783 + ... + 234380828.

It is an arithmetic number, because the mean of its divisors is an integer number (2812569672).

Almost surely, 2^10781517053 is an apocalyptic number.

It is an amenable number.

10781517053 is a deficient number, since it is larger than the sum of its proper divisors (468761635).

10781517053 is an equidigital number, since it uses as much as digits as its factorization.

10781517053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468761634.

The product of its (nonzero) digits is 29400, while the sum is 38.

The spelling of 10781517053 in words is "ten billion, seven hundred eighty-one million, five hundred seventeen thousand, fifty-three".