54416786549 has 2 divisors, whose sum is σ = 54416786550. Its totient is φ = 54416786548.

The previous prime is 54416786537. The next prime is 54416786597. The reversal of 54416786549 is 94568761445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37119802225 + 17296984324 = 192665^2 + 131518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54416786549 is a prime.

It is a super-2 number, since 2×54416786549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54416788549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27208393274 + 27208393275.

It is an arithmetic number, because the mean of its divisors is an integer number (27208393275).

Almost surely, 2^54416786549 is an apocalyptic number.

It is an amenable number.

54416786549 is a deficient number, since it is larger than the sum of its proper divisors (1).

54416786549 is an equidigital number, since it uses as much as digits as its factorization.

54416786549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 59.

The spelling of 54416786549 in words is "fifty-four billion, four hundred sixteen million, seven hundred eighty-six thousand, five hundred forty-nine".