54786894901489 has 9 divisors (see below), whose sum is σ = 58199361124321. Its totient is φ = 51564017948800.

The previous prime is 54786894901481. The next prime is 54786894901507. The reversal of 54786894901489 is 98410949868745.

The square root of 54786894901489 is 7401817.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 62527503025 + 54724367398464 = 250055^2 + 7397592^2 .

It is not a de Polignac number, because 54786894901489 - 2³ = 54786894901481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54786894901481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 125613189 + ... + 126048589.

Almost surely, 2^{54786894901489} is an apocalyptic number.

54786894901489 is the 7401817-th square number.

54786894901489 is the 3700909-th centered octagonal number.

It is an amenable number.

54786894901489 is a deficient number, since it is larger than the sum of its proper divisors (3412466222832).

54786894901489 is an frugal number, since it uses more digits than its factorization.

54786894901489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870836 (or 435418 counting only the distinct ones).

The product of its (nonzero) digits is 5016453120, while the sum is 82.

The spelling of 54786894901489 in words is "fifty-four trillion, seven hundred eighty-six billion, eight hundred ninety-four million, nine hundred one thousand, four hundred eighty-nine".