147678971904 has 240 divisors, whose sum is σ = 451885494060. Its totient is φ = 48023470080.

The previous prime is 147678971887. The next prime is 147678971917. The reversal of 147678971904 is 409179876741.

147678971904 is a `hidden beast` number, since 1 + 476 + 7 + 8 + 9 + 71 + 90 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 124467840000 + 23211131904 = 352800^2 + 152352^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6790552 + ... + 6812264.

Almost surely, 2^147678971904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147678971904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225942747030).

147678971904 is an abundant number, since it is smaller than the sum of its proper divisors (304206522156).

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

147678971904 is an equidigital number, since it uses as much as digits as its factorization.

147678971904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21788 (or 21759 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 63.

The spelling of 147678971904 in words is "one hundred forty-seven billion, six hundred seventy-eight million, nine hundred seventy-one thousand, nine hundred four".