8400056078 has 8 divisors (see below), whose sum is σ = 12644925120. Its totient is φ = 4185081040.

The previous prime is 8400056069. The next prime is 8400056087. The reversal of 8400056078 is 8706500048.

It is an interprime number because it is at equal distance from previous prime (8400056069) and next prime (8400056087).

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

It is a super-2 number, since 2×8400056078² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7472798 + ... + 7473921.

It is an arithmetic number, because the mean of its divisors is an integer number (1580615640).

Almost surely, 2^8400056078 is an apocalyptic number.

8400056078 is a deficient number, since it is larger than the sum of its proper divisors (4244869042).

8400056078 is a wasteful number, since it uses less digits than its factorization.

8400056078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14947002.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 8400056078 is about 91651.8198291774. The cubic root of 8400056078 is about 2032.7972372288.

The spelling of 8400056078 in words is "eight billion, four hundred million, fifty-six thousand, seventy-eight".