16878788053 has 2 divisors, whose sum is σ = 16878788054. Its totient is φ = 16878788052.

The previous prime is 16878788021. The next prime is 16878788063. The reversal of 16878788053 is 35088787861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11542923844 + 5335864209 = 107438^2 + 73047^2 .

It is an emirp because it is prime and its reverse (35088787861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16878788053 - 2⁵ = 16878788021 is a prime.

It is a super-2 number, since 2×16878788053² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16878787982 and 16878788000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16878788063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8439394026 + 8439394027.

It is an arithmetic number, because the mean of its divisors is an integer number (8439394027).

Almost surely, 2^16878788053 is an apocalyptic number.

It is an amenable number.

16878788053 is a deficient number, since it is larger than the sum of its proper divisors (1).

16878788053 is an equidigital number, since it uses as much as digits as its factorization.

16878788053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 16878788053 in words is "sixteen billion, eight hundred seventy-eight million, seven hundred eighty-eight thousand, fifty-three".