34009273978 has 32 divisors (see below), whose sum is σ = 54892670976. Its totient is φ = 15764575728.

The previous prime is 34009273973. The next prime is 34009274003. The reversal of 34009273978 is 87937290043.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (34009273973) 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, 146325 + ... + 299047.

It is an arithmetic number, because the mean of its divisors is an integer number (1715395968).

Almost surely, 2^34009273978 is an apocalyptic number.

34009273978 is a deficient number, since it is larger than the sum of its proper divisors (20883396998).

34009273978 is a wasteful number, since it uses less digits than its factorization.

34009273978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152898.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 34009273978 in words is "thirty-four billion, nine million, two hundred seventy-three thousand, nine hundred seventy-eight".