70340766778 has 16 divisors (see below), whose sum is σ = 111811651560. Its totient is φ = 33129376000.

The previous prime is 70340766757. The next prime is 70340766817. The reversal of 70340766778 is 87766704307.

It can be written as a sum of positive squares in 4 ways, for example, as 61939761129 + 8401005649 = 248877^2 + 91657^2 .

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, 14787523 + ... + 14792278.

Almost surely, 2^70340766778 is an apocalyptic number.

70340766778 is a deficient number, since it is larger than the sum of its proper divisors (41470884782).

70340766778 is a wasteful number, since it uses less digits than its factorization.

70340766778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29579873.

The product of its (nonzero) digits is 8297856, while the sum is 55.

The spelling of 70340766778 in words is "seventy billion, three hundred forty million, seven hundred sixty-six thousand, seven hundred seventy-eight".