140856821424 has 100 divisors (see below), whose sum is σ = 444742416360. Its totient is φ = 42683880960.

The previous prime is 140856821407. The next prime is 140856821489. The reversal of 140856821424 is 424128658041.

140856821424 is a `hidden beast` number, since 1 + 40 + 8 + 568 + 2 + 1 + 42 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 140856821424.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4926009 + ... + 4954520.

Almost surely, 2^140856821424 is an apocalyptic number.

It is an amenable number.

140856821424 is an abundant number, since it is smaller than the sum of its proper divisors (303885594936).

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

140856821424 is a wasteful number, since it uses less digits than its factorization.

140856821424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9880560 (or 9880545 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 140856821424 in words is "one hundred forty billion, eight hundred fifty-six million, eight hundred twenty-one thousand, four hundred twenty-four".