745615768 has 8 divisors (see below), whose sum is σ = 1398029580. Its totient is φ = 372807880.

The previous prime is 745615721. The next prime is 745615769. The reversal of 745615768 is 867516547.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745615769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46600978 + ... + 46600993.

Almost surely, 2^745615768 is an apocalyptic number.

It is an amenable number.

745615768 is a deficient number, since it is larger than the sum of its proper divisors (652413812).

745615768 is a wasteful number, since it uses less digits than its factorization.

745615768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93201977 (or 93201973 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The square root of 745615768 is about 27305.9657950419. The cubic root of 745615768 is about 906.7864625687.

The spelling of 745615768 in words is "seven hundred forty-five million, six hundred fifteen thousand, seven hundred sixty-eight".