781968923322 has 32 divisors (see below), whose sum is σ = 1573548092160. Its totient is φ = 259059306240.

The previous prime is 781968923321. The next prime is 781968923327. The reversal of 781968923322 is 223329869187.

It is a super-2 number, since 2×781968923322² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (781968923321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77118 + ... + 1252950.

It is an arithmetic number, because the mean of its divisors is an integer number (49173377880).

Almost surely, 2^781968923322 is an apocalyptic number.

781968923322 is an abundant number, since it is smaller than the sum of its proper divisors (791579168838).

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

781968923322 is a wasteful number, since it uses less digits than its factorization.

781968923322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176518.

The product of its digits is 15676416, while the sum is 60.

The spelling of 781968923322 in words is "seven hundred eighty-one billion, nine hundred sixty-eight million, nine hundred twenty-three thousand, three hundred twenty-two".