5438101961 has 2 divisors, whose sum is σ = 5438101962. Its totient is φ = 5438101960.

The previous prime is 5438101957. The next prime is 5438101969. The reversal of 5438101961 is 1691018345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2954574736 + 2483527225 = 54356^2 + 49835^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438101961 - 2² = 5438101957 is a prime.

It is not a weakly prime, because it can be changed into another prime (5438101969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719050980 + 2719050981.

It is an arithmetic number, because the mean of its divisors is an integer number (2719050981).

Almost surely, 2^5438101961 is an apocalyptic number.

It is an amenable number.

5438101961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5438101961 is an equidigital number, since it uses as much as digits as its factorization.

5438101961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 5438101961 is about 73743.4875836504. The cubic root of 5438101961 is about 1758.5273020751.

The spelling of 5438101961 in words is "five billion, four hundred thirty-eight million, one hundred one thousand, nine hundred sixty-one".