647914197222 has 24 divisors (see below), whose sum is σ = 1430301154464. Its totient is φ = 211896466704.

The previous prime is 647914197221. The next prime is 647914197253. The reversal of 647914197222 is 222791419746.

647914197222 is a `hidden beast` number, since 6 + 479 + 141 + 9 + 7 + 2 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647914197221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339576718 + ... + 339578625.

It is an arithmetic number, because the mean of its divisors is an integer number (59595881436).

Almost surely, 2^647914197222 is an apocalyptic number.

647914197222 is an abundant number, since it is smaller than the sum of its proper divisors (782386957242).

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

647914197222 is a wasteful number, since it uses less digits than its factorization.

647914197222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679155404 (or 679155401 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 647914197222 in words is "six hundred forty-seven billion, nine hundred fourteen million, one hundred ninety-seven thousand, two hundred twenty-two".