1654889478822 has 12 divisors (see below), whose sum is σ = 3585593870820. Its totient is φ = 551629826268.

The previous prime is 1654889478797. The next prime is 1654889478829. The reversal of 1654889478822 is 2288749884561.

1654889478822 is a `hidden beast` number, since 1 + 6 + 5 + 488 + 9 + 47 + 88 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654889478829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45969152172 + ... + 45969152207.

It is an arithmetic number, because the mean of its divisors is an integer number (298799489235).

Almost surely, 2^{1654889478822} is an apocalyptic number.

1654889478822 is an abundant number, since it is smaller than the sum of its proper divisors (1930704391998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1654889478822 is a wasteful number, since it uses less digits than its factorization.

1654889478822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91938304387 (or 91938304384 counting only the distinct ones).

The product of its digits is 495452160, while the sum is 72.

The spelling of 1654889478822 in words is "one trillion, six hundred fifty-four billion, eight hundred eighty-nine million, four hundred seventy-eight thousand, eight hundred twenty-two".