771375745 has 8 divisors (see below), whose sum is σ = 1057886784. Its totient is φ = 528943344.

The previous prime is 771375739. The next prime is 771375749. The reversal of 771375745 is 547573177.

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

It is a cyclic number.

It is not a de Polignac number, because 771375745 - 2⁵ = 771375713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 771375695 and 771375704.

It is not an unprimeable number, because it can be changed into a prime (771375749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11019619 + ... + 11019688.

It is an arithmetic number, because the mean of its divisors is an integer number (132235848).

Almost surely, 2^771375745 is an apocalyptic number.

It is an amenable number.

771375745 is a deficient number, since it is larger than the sum of its proper divisors (286511039).

771375745 is a wasteful number, since it uses less digits than its factorization.

771375745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22039319.

The product of its digits is 720300, while the sum is 46.

The square root of 771375745 is about 27773.6519924910. The cubic root of 771375745 is about 917.1111910477. Note that the first 4 decimals are identical.

The spelling of 771375745 in words is "seven hundred seventy-one million, three hundred seventy-five thousand, seven hundred forty-five".