42668254540 has 96 divisors (see below), whose sum is σ = 92036770560. Its totient is φ = 16611243264.

The previous prime is 42668254529. The next prime is 42668254543. The reversal of 42668254540 is 4545286624.

It is a super-2 number, since 2×42668254540² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42668254543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51593607 + ... + 51594433.

It is an arithmetic number, because the mean of its divisors is an integer number (958716360).

Almost surely, 2^42668254540 is an apocalyptic number.

It is an amenable number.

42668254540 is an abundant number, since it is smaller than the sum of its proper divisors (49368516020).

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

42668254540 is a wasteful number, since it uses less digits than its factorization.

42668254540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 42668254540 in words is "forty-two billion, six hundred sixty-eight million, two hundred fifty-four thousand, five hundred forty".