84477078158 has 8 divisors (see below), whose sum is σ = 138235218840. Its totient is φ = 38398671880.

The previous prime is 84477078157. The next prime is 84477078193. The reversal of 84477078158 is 85187077448.

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 2×84477078158² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84477078097 and 84477078106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84477078157) 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, 1919933573 + ... + 1919933616.

It is an arithmetic number, because the mean of its divisors is an integer number (17279402355).

Almost surely, 2^84477078158 is an apocalyptic number.

84477078158 is a deficient number, since it is larger than the sum of its proper divisors (53758140682).

84477078158 is a wasteful number, since it uses less digits than its factorization.

84477078158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839867202.

The product of its (nonzero) digits is 14049280, while the sum is 59.

The spelling of 84477078158 in words is "eighty-four billion, four hundred seventy-seven million, seventy-eight thousand, one hundred fifty-eight".