78228925419 has 4 divisors (see below), whose sum is σ = 104305233896. Its totient is φ = 52152616944.

The previous prime is 78228925409. The next prime is 78228925429. The reversal of 78228925419 is 91452982287.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78228925409) and next prime (78228925429).

It is not a de Polignac number, because 78228925419 - 2⁴ = 78228925403 is a prime.

It is a super-2 number, since 2×78228925419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78228925409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13038154234 + ... + 13038154239.

It is an arithmetic number, because the mean of its divisors is an integer number (26076308474).

Almost surely, 2^78228925419 is an apocalyptic number.

78228925419 is a deficient number, since it is larger than the sum of its proper divisors (26076308477).

78228925419 is a wasteful number, since it uses less digits than its factorization.

78228925419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26076308476.

The product of its digits is 5806080, while the sum is 57.

It can be divided in two parts, 782289 and 25419, that added together give a palindrome (807708).

The spelling of 78228925419 in words is "seventy-eight billion, two hundred twenty-eight million, nine hundred twenty-five thousand, four hundred nineteen".