426287036681 has 24 divisors (see below), whose sum is σ = 490856822400. Its totient is φ = 369433864800.

The previous prime is 426287036671. The next prime is 426287036683. The reversal of 426287036681 is 186630782624.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-426287036681 is a prime.

It is a super-2 number, since 2×426287036681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426287036683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 491675 + ... + 1046096.

It is an arithmetic number, because the mean of its divisors is an integer number (20452367600).

Almost surely, 2^426287036681 is an apocalyptic number.

It is an amenable number.

426287036681 is a deficient number, since it is larger than the sum of its proper divisors (64569785719).

426287036681 is a wasteful number, since it uses less digits than its factorization.

426287036681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537901 (or 1537890 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 426287036681 in words is "four hundred twenty-six billion, two hundred eighty-seven million, thirty-six thousand, six hundred eighty-one".