421751030678 has 16 divisors (see below), whose sum is σ = 638510826240. Its totient is φ = 208915760256.

The previous prime is 421751030671. The next prime is 421751030683. The reversal of 421751030678 is 876030157124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421751030671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89276 + ... + 922752.

It is an arithmetic number, because the mean of its divisors is an integer number (39906926640).

Almost surely, 2^421751030678 is an apocalyptic number.

421751030678 is a deficient number, since it is larger than the sum of its proper divisors (216759795562).

421751030678 is a wasteful number, since it uses less digits than its factorization.

421751030678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835831.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 421751030678 in words is "four hundred twenty-one billion, seven hundred fifty-one million, thirty thousand, six hundred seventy-eight".