781049468 has 12 divisors (see below), whose sum is σ = 1368301872. Its totient is φ = 390106080.

The previous prime is 781049459. The next prime is 781049483. The reversal of 781049468 is 864940187.

It is a super-2 number, since 2×781049468² = 1220076542926166048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 100448 + ... + 107943.

It is an arithmetic number, because the mean of its divisors is an integer number (114025156).

Almost surely, 2^781049468 is an apocalyptic number.

It is an amenable number.

781049468 is a deficient number, since it is larger than the sum of its proper divisors (587252404).

781049468 is a wasteful number, since it uses less digits than its factorization.

781049468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209332 (or 209330 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 781049468 is about 27947.2622630554. The cubic root of 781049468 is about 920.9290661884.

The spelling of 781049468 in words is "seven hundred eighty-one million, forty-nine thousand, four hundred sixty-eight".