78501533211401 has 8 divisors (see below), whose sum is σ = 78582964398624. Its totient is φ = 78420129821440.

The previous prime is 78501533211397. The next prime is 78501533211469. The reversal of 78501533211401 is 10411233510587.

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 78501533211401 - 2² = 78501533211397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78501533211301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295855 + ... + 12596916.

It is an arithmetic number, because the mean of its divisors is an integer number (9822870549828).

Almost surely, 2^{78501533211401} is an apocalyptic number.

It is an amenable number.

78501533211401 is a deficient number, since it is larger than the sum of its proper divisors (81431187223).

78501533211401 is a wasteful number, since it uses less digits than its factorization.

78501533211401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898631.

The product of its (nonzero) digits is 100800, while the sum is 41.

Adding to 78501533211401 its reverse (10411233510587), we get a palindrome (88912766721988).

The spelling of 78501533211401 in words is "seventy-eight trillion, five hundred one billion, five hundred thirty-three million, two hundred eleven thousand, four hundred one".