720851428578 has 8 divisors (see below), whose sum is σ = 1441702857168. Its totient is φ = 240283809524.

The previous prime is 720851428567. The next prime is 720851428579. The reversal of 720851428578 is 875824158027.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

720851428578 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (720851428579) 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, 60070952376 + ... + 60070952387.

It is an arithmetic number, because the mean of its divisors is an integer number (180212857146).

Almost surely, 2^720851428578 is an apocalyptic number.

720851428578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

720851428578 is a wasteful number, since it uses less digits than its factorization.

720851428578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120141904768.

The product of its (nonzero) digits is 10035200, while the sum is 57.

The spelling of 720851428578 in words is "seven hundred twenty billion, eight hundred fifty-one million, four hundred twenty-eight thousand, five hundred seventy-eight".