7801283457 has 18 divisors (see below), whose sum is σ = 12386061506. Its totient is φ = 4728049920.

The previous prime is 7801283429. The next prime is 7801283507. The reversal of 7801283457 is 7543821087.

7801283457 is a `hidden beast` number, since 78 + 0 + 128 + 3 + 457 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6822594801 + 978688656 = 82599^2 + 31284^2 .

It is not a de Polignac number, because 7801283457 - 2¹⁴ = 7801267073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7801283657) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3580768 + ... + 3582945.

Almost surely, 2^7801283457 is an apocalyptic number.

It is an amenable number.

7801283457 is a deficient number, since it is larger than the sum of its proper divisors (4584778049).

7801283457 is a wasteful number, since it uses less digits than its factorization.

7801283457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7163741 (or 7163727 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 7801283457 is about 88324.8745088268. The cubic root of 7801283457 is about 1983.3012520260.

The spelling of 7801283457 in words is "seven billion, eight hundred one million, two hundred eighty-three thousand, four hundred fifty-seven".