778272043 has 8 divisors (see below), whose sum is σ = 805603680. Its totient is φ = 750973440.

The previous prime is 778272041. The next prime is 778272049. The reversal of 778272043 is 340272877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 778272043 - 2¹ = 778272041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 778271987 and 778272005.

It is not an unprimeable number, because it can be changed into a prime (778272041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45771 + ... + 60427.

It is an arithmetic number, because the mean of its divisors is an integer number (100700460).

Almost surely, 2^778272043 is an apocalyptic number.

778272043 is a deficient number, since it is larger than the sum of its proper divisors (27331637).

778272043 is a wasteful number, since it uses less digits than its factorization.

778272043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16517.

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 778272043 is about 27897.5275427770. The cubic root of 778272043 is about 919.8361566293.

The spelling of 778272043 in words is "seven hundred seventy-eight million, two hundred seventy-two thousand, forty-three".