5420340661357 has 2 divisors, whose sum is σ = 5420340661358. Its totient is φ = 5420340661356.

The previous prime is 5420340661291. The next prime is 5420340661399. The reversal of 5420340661357 is 7531660430245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4249283381641 + 1171057279716 = 2061379^2 + 1082154^2 .

It is a cyclic number.

It is not a de Polignac number, because 5420340661357 - 2¹¹ = 5420340659309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5420340671357) 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, 2710170330678 + 2710170330679.

It is an arithmetic number, because the mean of its divisors is an integer number (2710170330679).

Almost surely, 2^{5420340661357} is an apocalyptic number.

It is an amenable number.

5420340661357 is a deficient number, since it is larger than the sum of its proper divisors (1).

5420340661357 is an equidigital number, since it uses as much as digits as its factorization.

5420340661357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 5420340661357 in words is "five trillion, four hundred twenty billion, three hundred forty million, six hundred sixty-one thousand, three hundred fifty-seven".