428070302681 has 8 divisors (see below), whose sum is σ = 497515122240. Its totient is φ = 360698462928.

The previous prime is 428070302659. The next prime is 428070302687. The reversal of 428070302681 is 186203070824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428070302681 - 2¹⁸ = 428070040537 is a prime.

It is a super-2 number, since 2×428070302681² (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 (428070302687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518244506 + ... + 518245331.

It is an arithmetic number, because the mean of its divisors is an integer number (62189390280).

Almost surely, 2^428070302681 is an apocalyptic number.

It is an amenable number.

428070302681 is a deficient number, since it is larger than the sum of its proper divisors (69444819559).

428070302681 is a wasteful number, since it uses less digits than its factorization.

428070302681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036489903.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 428070302681 in words is "four hundred twenty-eight billion, seventy million, three hundred two thousand, six hundred eighty-one".