8074842778 has 16 divisors (see below), whose sum is σ = 12650470560. Its totient is φ = 3861718416.

The previous prime is 8074842689. The next prime is 8074842791. The reversal of 8074842778 is 8772484708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920376 + ... + 929107.

It is an arithmetic number, because the mean of its divisors is an integer number (790654410).

Almost surely, 2^8074842778 is an apocalyptic number.

8074842778 is a deficient number, since it is larger than the sum of its proper divisors (4575627782).

8074842778 is a wasteful number, since it uses less digits than its factorization.

8074842778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849581.

The product of its (nonzero) digits is 5619712, while the sum is 55.

The square root of 8074842778 is about 89860.1289671899. The cubic root of 8074842778 is about 2006.2175491780.

The spelling of 8074842778 in words is "eight billion, seventy-four million, eight hundred forty-two thousand, seven hundred seventy-eight".