426878373651 has 32 divisors (see below), whose sum is σ = 595463270400. Its totient is φ = 271669372800.

The previous prime is 426878373631. The next prime is 426878373653. The reversal of 426878373651 is 156373878624.

It is a happy number.

It is not a de Polignac number, because 426878373651 - 2¹¹ = 426878371603 is a prime.

It is a super-3 number, since 3×426878373651³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (426878373653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6284070 + ... + 6351636.

It is an arithmetic number, because the mean of its divisors is an integer number (18608227200).

Almost surely, 2^426878373651 is an apocalyptic number.

426878373651 is a deficient number, since it is larger than the sum of its proper divisors (168584896749).

426878373651 is a wasteful number, since it uses less digits than its factorization.

426878373651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68419.

The product of its digits is 40642560, while the sum is 60.

It can be divided in two parts, 4268783 and 73651, that added together give a palindrome (4342434).

The spelling of 426878373651 in words is "four hundred twenty-six billion, eight hundred seventy-eight million, three hundred seventy-three thousand, six hundred fifty-one".