426018408981 has 8 divisors (see below), whose sum is σ = 619663140384. Its totient is φ = 258192975120.

The previous prime is 426018408971. The next prime is 426018409009. The reversal of 426018408981 is 189804810624.

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

It is not a de Polignac number, because 426018408981 - 2⁷ = 426018408853 is a prime.

It is a super-2 number, since 2×426018408981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426018408901) 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, 6454824346 + ... + 6454824411.

It is an arithmetic number, because the mean of its divisors is an integer number (77457892548).

Almost surely, 2^426018408981 is an apocalyptic number.

It is an amenable number.

426018408981 is a deficient number, since it is larger than the sum of its proper divisors (193644731403).

426018408981 is a wasteful number, since it uses less digits than its factorization.

426018408981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909648771.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 426018408981 in words is "four hundred twenty-six billion, eighteen million, four hundred eight thousand, nine hundred eighty-one".