654225980938 has 4 divisors (see below), whose sum is σ = 981338971410. Its totient is φ = 327112990468.

The previous prime is 654225980923. The next prime is 654225980951. The reversal of 654225980938 is 839089522456.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 649550566809 + 4675414129 = 805947^2 + 68377^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163556495233 + ... + 163556495236.

Almost surely, 2^654225980938 is an apocalyptic number.

654225980938 is a deficient number, since it is larger than the sum of its proper divisors (327112990472).

654225980938 is a wasteful number, since it uses less digits than its factorization.

654225980938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327112990471.

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 654225980938 in words is "six hundred fifty-four billion, two hundred twenty-five million, nine hundred eighty thousand, nine hundred thirty-eight".