768616542 has 48 divisors (see below), whose sum is σ = 1723962240. Its totient is φ = 247233600.

The previous prime is 768616501. The next prime is 768616543. The reversal of 768616542 is 245616867.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768616543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215292 + ... + 218832.

It is an arithmetic number, because the mean of its divisors is an integer number (35915880).

Almost surely, 2^768616542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 768616542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861981120).

768616542 is an abundant number, since it is smaller than the sum of its proper divisors (955345698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768616542 is a wasteful number, since it uses less digits than its factorization.

768616542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3966 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 768616542 is about 27723.9344610393. The cubic root of 768616542 is about 916.0163855818.

The spelling of 768616542 in words is "seven hundred sixty-eight million, six hundred sixteen thousand, five hundred forty-two".