426999546649 has 16 divisors (see below), whose sum is σ = 471134087424. Its totient is φ = 384480604800.

The previous prime is 426999546629. The next prime is 426999546667. The reversal of 426999546649 is 946645999624.

It is a cyclic number.

It is not a de Polignac number, because 426999546649 - 2¹³ = 426999538457 is a prime.

It is a super-2 number, since 2×426999546649² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (426999546629) 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, 3599614 + ... + 3716344.

It is an arithmetic number, because the mean of its divisors is an integer number (29445880464).

Almost surely, 2^426999546649 is an apocalyptic number.

It is an amenable number.

426999546649 is a deficient number, since it is larger than the sum of its proper divisors (44134540775).

426999546649 is a wasteful number, since it uses less digits than its factorization.

426999546649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123648.

The product of its digits is 906992640, while the sum is 73.

The spelling of 426999546649 in words is "four hundred twenty-six billion, nine hundred ninety-nine million, five hundred forty-six thousand, six hundred forty-nine".