84474673920 has 864 divisors, whose sum is σ = 365895164544. Its totient is φ = 17517772800.

The previous prime is 84474673901. The next prime is 84474673937. The reversal of 84474673920 is 2937647448.

84474673920 is a `hidden beast` number, since 8 + 447 + 46 + 73 + 92 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63946860 + ... + 63948180.

Almost surely, 2^84474673920 is an apocalyptic number.

84474673920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84474673920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182947582272).

84474673920 is an abundant number, since it is smaller than the sum of its proper divisors (281420490624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84474673920 is a wasteful number, since it uses less digits than its factorization.

84474673920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 84474673920 in words is "eighty-four billion, four hundred seventy-four million, six hundred seventy-three thousand, nine hundred twenty".