654837488819 has 2 divisors, whose sum is σ = 654837488820. Its totient is φ = 654837488818.

The previous prime is 654837488803. The next prime is 654837488849. The reversal of 654837488819 is 918884738456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654837488819 - 2⁴ = 654837488803 is a prime.

It is a super-2 number, since 2×654837488819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (654837488849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327418744409 + 327418744410.

It is an arithmetic number, because the mean of its divisors is an integer number (327418744410).

Almost surely, 2^654837488819 is an apocalyptic number.

654837488819 is a deficient number, since it is larger than the sum of its proper divisors (1).

654837488819 is an equidigital number, since it uses as much as digits as its factorization.

654837488819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 371589120, while the sum is 71.

The spelling of 654837488819 in words is "six hundred fifty-four billion, eight hundred thirty-seven million, four hundred eighty-eight thousand, eight hundred nineteen".