100421745858278 has 8 divisors (see below), whose sum is σ = 162219743309568. Its totient is φ = 46348498088424.

The previous prime is 100421745858199. The next prime is 100421745858349. The reversal of 100421745858278 is 872858547124001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100421745858278² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100421745858278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931187420326 + ... + 1931187420377.

It is an arithmetic number, because the mean of its divisors is an integer number (20277467913696).

Almost surely, 2^{100421745858278} is an apocalyptic number.

100421745858278 is a deficient number, since it is larger than the sum of its proper divisors (61797997451290).

100421745858278 is a wasteful number, since it uses less digits than its factorization.

100421745858278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862374840718.

The product of its (nonzero) digits is 40140800, while the sum is 62.

The spelling of 100421745858278 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred fifty-eight thousand, two hundred seventy-eight".