651431468226 has 96 divisors (see below), whose sum is σ = 1669438052352. Its totient is φ = 164629765440.

The previous prime is 651431468209. The next prime is 651431468243. The reversal of 651431468226 is 622864134156.

It is an interprime number because it is at equal distance from previous prime (651431468209) and next prime (651431468243).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117495 + ... + 1147461.

It is an arithmetic number, because the mean of its divisors is an integer number (17389979712).

Almost surely, 2^651431468226 is an apocalyptic number.

651431468226 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 651431468226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834719026176).

651431468226 is an abundant number, since it is smaller than the sum of its proper divisors (1018006584126).

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

651431468226 is a wasteful number, since it uses less digits than its factorization.

651431468226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030064 (or 1030027 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 651431468226 in words is "six hundred fifty-one billion, four hundred thirty-one million, four hundred sixty-eight thousand, two hundred twenty-six".