771361081 has 8 divisors (see below), whose sum is σ = 784082880. Its totient is φ = 758721072.

The previous prime is 771361079. The next prime is 771361093. The reversal of 771361081 is 180163177.

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 771361081 - 2¹ = 771361079 is a prime.

It is a super-2 number, since 2×771361081² = 1189995834562977122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771361021) 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, 1285 + ... + 39298.

It is an arithmetic number, because the mean of its divisors is an integer number (98010360).

Almost surely, 2^771361081 is an apocalyptic number.

It is an amenable number.

771361081 is a deficient number, since it is larger than the sum of its proper divisors (12721799).

771361081 is a wasteful number, since it uses less digits than its factorization.

771361081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40895.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 771361081 is about 27773.3880000262. The cubic root of 771361081 is about 917.1053795247.

The spelling of 771361081 in words is "seven hundred seventy-one million, three hundred sixty-one thousand, eighty-one".