6420701708 has 6 divisors (see below), whose sum is σ = 11236227996. Its totient is φ = 3210350852.

The previous prime is 6420701699. The next prime is 6420701713. The reversal of 6420701708 is 8071070246.

It is a happy number.

It is a super-2 number, since 2×6420701708² = 82450820846228234528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802587710 + ... + 802587717.

It is an arithmetic number, because the mean of its divisors is an integer number (1872704666).

Almost surely, 2^6420701708 is an apocalyptic number.

It is an amenable number.

6420701708 is a deficient number, since it is larger than the sum of its proper divisors (4815526288).

6420701708 is a wasteful number, since it uses less digits than its factorization.

6420701708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605175431 (or 1605175429 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 6420701708 is about 80129.2812147969. The cubic root of 6420701708 is about 1858.6352292402.

The spelling of 6420701708 in words is "six billion, four hundred twenty million, seven hundred one thousand, seven hundred eight".