643141025154 has 24 divisors (see below), whose sum is σ = 1393488375552. Its totient is φ = 214377856440.

The previous prime is 643141025099. The next prime is 643141025167. The reversal of 643141025154 is 451520141346.

643141025154 is a `hidden beast` number, since 6 + 4 + 31 + 4 + 102 + 515 + 4 = 666.

643141025154 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×643141025154² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2058607 + ... + 2350349.

It is an arithmetic number, because the mean of its divisors is an integer number (58062015648).

Almost surely, 2^643141025154 is an apocalyptic number.

643141025154 is an abundant number, since it is smaller than the sum of its proper divisors (750347350398).

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

643141025154 is a wasteful number, since it uses less digits than its factorization.

643141025154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414222 (or 414219 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 643141025154 in words is "six hundred forty-three billion, one hundred forty-one million, twenty-five thousand, one hundred fifty-four".