8373257878 has 8 divisors (see below), whose sum is σ = 12560275080. Its totient is φ = 4186499520.

The previous prime is 8373257873. The next prime is 8373257897. The reversal of 8373257878 is 8787523738.

It is a happy number.

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

It is a super-2 number, since 2×8373257878² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8373257873) 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, 94893 + ... + 160471.

It is an arithmetic number, because the mean of its divisors is an integer number (1570034385).

Almost surely, 2^8373257878 is an apocalyptic number.

8373257878 is a deficient number, since it is larger than the sum of its proper divisors (4187017202).

8373257878 is a wasteful number, since it uses less digits than its factorization.

8373257878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129422.

The product of its digits is 15805440, while the sum is 58.

The square root of 8373257878 is about 91505.5073643111. The cubic root of 8373257878 is about 2030.6332302632.

The spelling of 8373257878 in words is "eight billion, three hundred seventy-three million, two hundred fifty-seven thousand, eight hundred seventy-eight".