722157864378 has 8 divisors (see below), whose sum is σ = 1444315728768. Its totient is φ = 240719288124.

The previous prime is 722157864361. The next prime is 722157864517. The reversal of 722157864378 is 873468751227.

722157864378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

722157864378 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60179822026 + ... + 60179822037.

It is an arithmetic number, because the mean of its divisors is an integer number (180539466096).

Almost surely, 2^722157864378 is an apocalyptic number.

722157864378 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.

722157864378 is a wasteful number, since it uses less digits than its factorization.

722157864378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120359644068.

The product of its digits is 31610880, while the sum is 60.

The spelling of 722157864378 in words is "seven hundred twenty-two billion, one hundred fifty-seven million, eight hundred sixty-four thousand, three hundred seventy-eight".