13771806953 has 2 divisors, whose sum is σ = 13771806954. Its totient is φ = 13771806952.

The previous prime is 13771806941. The next prime is 13771806967. The reversal of 13771806953 is 35960817731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10450359529 + 3321447424 = 102227^2 + 57632^2 .

It is a cyclic number.

It is not a de Polignac number, because 13771806953 - 2¹² = 13771802857 is a prime.

It is not a weakly prime, because it can be changed into another prime (13771806973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885903476 + 6885903477.

It is an arithmetic number, because the mean of its divisors is an integer number (6885903477).

Almost surely, 2^13771806953 is an apocalyptic number.

It is an amenable number.

13771806953 is a deficient number, since it is larger than the sum of its proper divisors (1).

13771806953 is an equidigital number, since it uses as much as digits as its factorization.

13771806953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 13771806953 in words is "thirteen billion, seven hundred seventy-one million, eight hundred six thousand, nine hundred fifty-three".