78563011 has 8 divisors (see below), whose sum is σ = 80892000. Its totient is φ = 76253760.

The previous prime is 78562999. The next prime is 78563033. The reversal of 78563011 is 11036587.

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 78563011 - 2⁹ = 78562499 is a prime.

It is a super-2 number, since 2×78563011² = 12344293394772242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78563311) 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, 3345 + ... + 12973.

It is an arithmetic number, because the mean of its divisors is an integer number (10111500).

Almost surely, 2^78563011 is an apocalyptic number.

78563011 is a deficient number, since it is larger than the sum of its proper divisors (2328989).

78563011 is a wasteful number, since it uses less digits than its factorization.

78563011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9869.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 78563011 is about 8863.5777764964. The cubic root of 78563011 is about 428.2914190676.

Adding to 78563011 its reverse (11036587), we get a palindrome (89599598).

The spelling of 78563011 in words is "seventy-eight million, five hundred sixty-three thousand, eleven".