840652401426 has 16 divisors (see below), whose sum is σ = 1683919592544. Its totient is φ = 279781668864.

The previous prime is 840652401383. The next prime is 840652401439. The reversal of 840652401426 is 624104256048.

840652401426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108945391 + ... + 108953106.

It is an arithmetic number, because the mean of its divisors is an integer number (105244974534).

Almost surely, 2^840652401426 is an apocalyptic number.

840652401426 is an abundant number, since it is smaller than the sum of its proper divisors (843267191118).

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

840652401426 is a wasteful number, since it uses less digits than its factorization.

840652401426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217899145.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 840652401426 in words is "eight hundred forty billion, six hundred fifty-two million, four hundred one thousand, four hundred twenty-six".