153961989228 has 72 divisors (see below), whose sum is σ = 399800681280. Its totient is φ = 49921056000.

The previous prime is 153961989227. The next prime is 153961989253. The reversal of 153961989228 is 822989169351.

153961989228 is a `hidden beast` number, since 1 + 5 + 3 + 9 + 619 + 8 + 9 + 2 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (153961989221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6316168 + ... + 6340496.

It is an arithmetic number, because the mean of its divisors is an integer number (5552787240).

Almost surely, 2^153961989228 is an apocalyptic number.

153961989228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

153961989228 is an abundant number, since it is smaller than the sum of its proper divisors (245838692052).

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

153961989228 is a wasteful number, since it uses less digits than its factorization.

153961989228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29127 (or 29122 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 63.

The spelling of 153961989228 in words is "one hundred fifty-three billion, nine hundred sixty-one million, nine hundred eighty-nine thousand, two hundred twenty-eight".