68421484024 has 8 divisors (see below), whose sum is σ = 128290282560. Its totient is φ = 34210742008.

The previous prime is 68421483997. The next prime is 68421484073. The reversal of 68421484024 is 42048412486.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4276342744 + ... + 4276342759.

It is an arithmetic number, because the mean of its divisors is an integer number (16036285320).

Almost surely, 2^68421484024 is an apocalyptic number.

It is an amenable number.

68421484024 is a deficient number, since it is larger than the sum of its proper divisors (59868798536).

68421484024 is a wasteful number, since it uses less digits than its factorization.

68421484024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552685509 (or 8552685505 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 43.

The spelling of 68421484024 in words is "sixty-eight billion, four hundred twenty-one million, four hundred eighty-four thousand, twenty-four".