54144435709421 has 2 divisors, whose sum is σ = 54144435709422. Its totient is φ = 54144435709420.

The previous prime is 54144435709391. The next prime is 54144435709451. The reversal of 54144435709421 is 12490753444145.

It is a balanced prime because it is at equal distance from previous prime (54144435709391) and next prime (54144435709451).

It can be written as a sum of positive squares in only one way, i.e., 53667492156100 + 476943553321 = 7325810^2 + 690611^2 .

It is a cyclic number.

It is not a de Polignac number, because 54144435709421 - 2²² = 54144431515117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54144435709451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27072217854710 + 27072217854711.

It is an arithmetic number, because the mean of its divisors is an integer number (27072217854711).

Almost surely, 2^{54144435709421} is an apocalyptic number.

It is an amenable number.

54144435709421 is a deficient number, since it is larger than the sum of its proper divisors (1).

54144435709421 is an equidigital number, since it uses as much as digits as its factorization.

54144435709421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 54144435709421 in words is "fifty-four trillion, one hundred forty-four billion, four hundred thirty-five million, seven hundred nine thousand, four hundred twenty-one".