768115961 has 4 divisors (see below), whose sum is σ = 768234624. Its totient is φ = 767997300.

The previous prime is 768115951. The next prime is 768115963. The reversal of 768115961 is 169511867.

768115961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169511867 = 7 ⋅24215981.

It is a cyclic number.

It is not a de Polignac number, because 768115961 - 2⁶ = 768115897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768115963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49025 + ... + 62766.

It is an arithmetic number, because the mean of its divisors is an integer number (192058656).

Almost surely, 2^768115961 is an apocalyptic number.

It is an amenable number.

768115961 is a deficient number, since it is larger than the sum of its proper divisors (118663).

768115961 is a wasteful number, since it uses less digits than its factorization.

768115961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118662.

The product of its digits is 90720, while the sum is 44.

The square root of 768115961 is about 27714.9050332127. The cubic root of 768115961 is about 915.8174827676.

The spelling of 768115961 in words is "seven hundred sixty-eight million, one hundred fifteen thousand, nine hundred sixty-one".