78298128411 has 8 divisors (see below), whose sum is σ = 105867892224. Its totient is φ = 51463558440.

The previous prime is 78298128361. The next prime is 78298128431. The reversal of 78298128411 is 11482189287.

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

It is not a de Polignac number, because 78298128411 - 2⁹ = 78298127899 is a prime.

It is a super-2 number, since 2×78298128411² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78298128431) 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, 183798211 + ... + 183798636.

It is an arithmetic number, because the mean of its divisors is an integer number (13233486528).

Almost surely, 2^78298128411 is an apocalyptic number.

78298128411 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

78298128411 is a deficient number, since it is larger than the sum of its proper divisors (27569763813).

78298128411 is a wasteful number, since it uses less digits than its factorization.

78298128411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367596921.

The product of its digits is 516096, while the sum is 51.

The spelling of 78298128411 in words is "seventy-eight billion, two hundred ninety-eight million, one hundred twenty-eight thousand, four hundred eleven".