771216070 has 8 divisors (see below), whose sum is σ = 1388188944. Its totient is φ = 308486424.

The previous prime is 771216031. The next prime is 771216071. The reversal of 771216070 is 70612177.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771216071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38560794 + ... + 38560813.

It is an arithmetic number, because the mean of its divisors is an integer number (173523618).

Almost surely, 2^771216070 is an apocalyptic number.

771216070 is a deficient number, since it is larger than the sum of its proper divisors (616972874).

771216070 is a wasteful number, since it uses less digits than its factorization.

771216070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77121614.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 771216070 is about 27770.7772667601. Note that the first 3 decimals coincide. The cubic root of 771216070 is about 917.0479059212.

The spelling of 771216070 in words is "seven hundred seventy-one million, two hundred sixteen thousand, seventy".