426027063840 has 384 divisors, whose sum is σ = 1627494156288. Its totient is φ = 91447541760.

The previous prime is 426027063827. The next prime is 426027063871. The reversal of 426027063840 is 48360720624.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 426027063792 and 426027063801.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26667055 + ... + 26683025.

It is an arithmetic number, because the mean of its divisors is an integer number (4238266032).

Almost surely, 2^426027063840 is an apocalyptic number.

426027063840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426027063840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813747078144).

426027063840 is an abundant number, since it is smaller than the sum of its proper divisors (1201467092448).

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

426027063840 is a wasteful number, since it uses less digits than its factorization.

426027063840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16480 (or 16472 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 426027063840 in words is "four hundred twenty-six billion, twenty-seven million, sixty-three thousand, eight hundred forty".