422778670390 has 16 divisors (see below), whose sum is σ = 761378936832. Its totient is φ = 169027617024.

The previous prime is 422778670319. The next prime is 422778670393. The reversal of 422778670390 is 93076877224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422778670393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10460214 + ... + 10500553.

It is an arithmetic number, because the mean of its divisors is an integer number (47586183552).

Almost surely, 2^422778670390 is an apocalyptic number.

422778670390 is a deficient number, since it is larger than the sum of its proper divisors (338600266442).

422778670390 is a wasteful number, since it uses less digits than its factorization.

422778670390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20962791.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 422778670390 in words is "four hundred twenty-two billion, seven hundred seventy-eight million, six hundred seventy thousand, three hundred ninety".