61351043064853 has 2 divisors, whose sum is σ = 61351043064854. Its totient is φ = 61351043064852.

The previous prime is 61351043064833. The next prime is 61351043064863. The reversal of 61351043064853 is 35846034015316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32951928102129 + 28399114962724 = 5740377^2 + 5329082^2 .

It is a cyclic number.

It is not a de Polignac number, because 61351043064853 - 2²¹ = 61351040967701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61351043064797 and 61351043064806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61351043064833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30675521532426 + 30675521532427.

It is an arithmetic number, because the mean of its divisors is an integer number (30675521532427).

Almost surely, 2^{61351043064853} is an apocalyptic number.

It is an amenable number.

61351043064853 is a deficient number, since it is larger than the sum of its proper divisors (1).

61351043064853 is an equidigital number, since it uses as much as digits as its factorization.

61351043064853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 61351043064853 in words is "sixty-one trillion, three hundred fifty-one billion, forty-three million, sixty-four thousand, eight hundred fifty-three".