61214618713543 has 2 divisors, whose sum is σ = 61214618713544. Its totient is φ = 61214618713542.

The previous prime is 61214618713537. The next prime is 61214618713609. The reversal of 61214618713543 is 34531781641216.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61214618713543 is a prime.

It is a super-2 number, since 2×61214618713543² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61214618713513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30607309356771 + 30607309356772.

It is an arithmetic number, because the mean of its divisors is an integer number (30607309356772).

Almost surely, 2^{61214618713543} is an apocalyptic number.

61214618713543 is a deficient number, since it is larger than the sum of its proper divisors (1).

61214618713543 is an equidigital number, since it uses as much as digits as its factorization.

61214618713543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The spelling of 61214618713543 in words is "sixty-one trillion, two hundred fourteen billion, six hundred eighteen million, seven hundred thirteen thousand, five hundred forty-three".