654819134948 has 90 divisors (see below), whose sum is σ = 1336314919590. Its totient is φ = 279791107200.

The previous prime is 654819134947. The next prime is 654819134951. The reversal of 654819134948 is 849431918456.

It can be written as a sum of positive squares in only one way, i.e., 616300362304 + 38518772644 = 785048^2 + 196262^2 .

It is not an unprimeable number, because it can be changed into a prime (654819134947) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 807421463 + ... + 807422273.

It is an arithmetic number, because the mean of its divisors is an integer number (14847943551).

Almost surely, 2^654819134948 is an apocalyptic number.

654819134948 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

654819134948 is an abundant number, since it is smaller than the sum of its proper divisors (681495784642).

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

654819134948 is an frugal number, since it uses more digits than its factorization.

654819134948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 841 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 62.

The spelling of 654819134948 in words is "six hundred fifty-four billion, eight hundred nineteen million, one hundred thirty-four thousand, nine hundred forty-eight".