426097343781 has 16 divisors (see below), whose sum is σ = 646651797120. Its totient is φ = 277136483040.

The previous prime is 426097343767. The next prime is 426097343783. The reversal of 426097343781 is 187343790624.

426097343781 is a `hidden beast` number, since 4 + 2 + 60 + 9 + 73 + 437 + 81 = 666.

It is not a de Polignac number, because 426097343781 - 2⁷ = 426097343653 is a prime.

It is a super-2 number, since 2×426097343781² (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 (426097343783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192454785 + ... + 192456998.

It is an arithmetic number, because the mean of its divisors is an integer number (40415737320).

Almost surely, 2^426097343781 is an apocalyptic number.

426097343781 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

426097343781 is a deficient number, since it is larger than the sum of its proper divisors (220554453339).

426097343781 is a wasteful number, since it uses less digits than its factorization.

426097343781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384911833 (or 384911827 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 426097343781 in words is "four hundred twenty-six billion, ninety-seven million, three hundred forty-three thousand, seven hundred eighty-one".