54421621060319 has 2 divisors, whose sum is σ = 54421621060320. Its totient is φ = 54421621060318.

The previous prime is 54421621060291. The next prime is 54421621060349. The reversal of 54421621060319 is 91306012612445.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54421621060319 - 2³² = 54417326093023 is a prime.

It is a super-2 number, since 2×54421621060319² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54421621060319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421621060349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210810530159 + 27210810530160.

It is an arithmetic number, because the mean of its divisors is an integer number (27210810530160).

Almost surely, 2^{54421621060319} is an apocalyptic number.

54421621060319 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421621060319 is an equidigital number, since it uses as much as digits as its factorization.

54421621060319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 54421621060319 in words is "fifty-four trillion, four hundred twenty-one billion, six hundred twenty-one million, sixty thousand, three hundred nineteen".