6939765201553 has 2 divisors, whose sum is σ = 6939765201554. Its totient is φ = 6939765201552.

The previous prime is 6939765201527. The next prime is 6939765201617. The reversal of 6939765201553 is 3551025679396.

6939765201553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6747795913104 + 191969288449 = 2597652^2 + 438143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6939765201553 is a prime.

It is a super-2 number, since 2×6939765201553² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6939765201491 and 6939765201500.

It is not a weakly prime, because it can be changed into another prime (6939765201503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469882600776 + 3469882600777.

It is an arithmetic number, because the mean of its divisors is an integer number (3469882600777).

Almost surely, 2^{6939765201553} is an apocalyptic number.

It is an amenable number.

6939765201553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939765201553 is an equidigital number, since it uses as much as digits as its factorization.

6939765201553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927000, while the sum is 61.

The spelling of 6939765201553 in words is "six trillion, nine hundred thirty-nine billion, seven hundred sixty-five million, two hundred one thousand, five hundred fifty-three".