689769734048 has 12 divisors (see below), whose sum is σ = 1357984163970. Its totient is φ = 344884867008.

The previous prime is 689769734041. The next prime is 689769734089. The reversal of 689769734048 is 840437967986.

689769734048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 384831641104 + 304938092944 = 620348^2 + 552212^2 .

It is not an unprimeable number, because it can be changed into a prime (689769734041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10777652063 + ... + 10777652126.

Almost surely, 2^689769734048 is an apocalyptic number.

It is an amenable number.

689769734048 is a deficient number, since it is larger than the sum of its proper divisors (668214429922).

689769734048 is a wasteful number, since it uses less digits than its factorization.

689769734048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21555304199 (or 21555304191 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 71.

The spelling of 689769734048 in words is "six hundred eighty-nine billion, seven hundred sixty-nine million, seven hundred thirty-four thousand, forty-eight".