768221912 has 64 divisors (see below), whose sum is σ = 1523404800. Its totient is φ = 362718720.

The previous prime is 768221911. The next prime is 768221929. The reversal of 768221912 is 219122867.

Its product of digits (24192) is a multiple of the sum of its prime factors (576).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768221911) 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, 2213723 + ... + 2214069.

It is an arithmetic number, because the mean of its divisors is an integer number (23803200).

Almost surely, 2^768221912 is an apocalyptic number.

It is an amenable number.

768221912 is a deficient number, since it is larger than the sum of its proper divisors (755182888).

768221912 is a wasteful number, since it uses less digits than its factorization.

768221912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 572 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 768221912 is about 27716.8164117021. The cubic root of 768221912 is about 915.8595889608.

The spelling of 768221912 in words is "seven hundred sixty-eight million, two hundred twenty-one thousand, nine hundred twelve".