426949987716 has 192 divisors, whose sum is σ = 1276362662400. Its totient is φ = 120896575488.

The previous prime is 426949987637. The next prime is 426949987733. The reversal of 426949987716 is 617789949624.

426949987716 is a `hidden beast` number, since 4 + 2 + 69 + 499 + 8 + 7 + 71 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70115200 + ... + 70121288.

It is an arithmetic number, because the mean of its divisors is an integer number (6647722200).

Almost surely, 2^426949987716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426949987716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638181331200).

426949987716 is an abundant number, since it is smaller than the sum of its proper divisors (849412674684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426949987716 is a wasteful number, since it uses less digits than its factorization.

426949987716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923 (or 6915 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The spelling of 426949987716 in words is "four hundred twenty-six billion, nine hundred forty-nine million, nine hundred eighty-seven thousand, seven hundred sixteen".