768161889 has 48 divisors (see below), whose sum is σ = 1306730880. Its totient is φ = 429918720.

The previous prime is 768161819. The next prime is 768161893. The reversal of 768161889 is 988161867.

It is not a de Polignac number, because 768161889 - 2¹⁶ = 768096353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (768161819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60217 + ... + 71849.

It is an arithmetic number, because the mean of its divisors is an integer number (27223560).

Almost surely, 2^768161889 is an apocalyptic number.

It is an amenable number.

768161889 is a deficient number, since it is larger than the sum of its proper divisors (538568991).

768161889 is a wasteful number, since it uses less digits than its factorization.

768161889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702 (or 11699 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 768161889 is about 27715.7336002495. The cubic root of 768161889 is about 915.8357355789.

The spelling of 768161889 in words is "seven hundred sixty-eight million, one hundred sixty-one thousand, eight hundred eighty-nine".