146578721422 has 12 divisors (see below), whose sum is σ = 255764912040. Its totient is φ = 62819451996.

The previous prime is 146578721417. The next prime is 146578721423. The reversal of 146578721422 is 224127875641.

146578721422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146578721423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 747850522 + ... + 747850717.

It is an arithmetic number, because the mean of its divisors is an integer number (21313742670).

Almost surely, 2^146578721422 is an apocalyptic number.

146578721422 is a deficient number, since it is larger than the sum of its proper divisors (109186190618).

146578721422 is a wasteful number, since it uses less digits than its factorization.

146578721422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495701255 (or 1495701248 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The spelling of 146578721422 in words is "one hundred forty-six billion, five hundred seventy-eight million, seven hundred twenty-one thousand, four hundred twenty-two".