670051778 has 24 divisors (see below), whose sum is σ = 1152797184. Its totient is φ = 291324440.

The previous prime is 670051751. The next prime is 670051813. The reversal of 670051778 is 877150076.

670051778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×670051778² = 897938770401922568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54626 + ... + 65757.

It is an arithmetic number, because the mean of its divisors is an integer number (48033216).

Almost surely, 2^670051778 is an apocalyptic number.

670051778 is a deficient number, since it is larger than the sum of its proper divisors (482745406).

670051778 is a wasteful number, since it uses less digits than its factorization.

670051778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120430 (or 120419 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 670051778 is about 25885.3583710947. The cubic root of 670051778 is about 875.0565527530.

The spelling of 670051778 in words is "six hundred seventy million, fifty-one thousand, seven hundred seventy-eight".