15484021128 has 32 divisors (see below), whose sum is σ = 43011170400. Its totient is φ = 5161340304.

The previous prime is 15484021099. The next prime is 15484021151. The reversal of 15484021128 is 82112048451.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15484021092 and 15484021101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35842426 + ... + 35842857.

It is an arithmetic number, because the mean of its divisors is an integer number (1344099075).

Almost surely, 2^15484021128 is an apocalyptic number.

15484021128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15484021128 is an abundant number, since it is smaller than the sum of its proper divisors (27527149272).

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

15484021128 is a wasteful number, since it uses less digits than its factorization.

15484021128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71685298 (or 71685288 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

Adding to 15484021128 its reverse (82112048451), we get a palindrome (97596069579).

The spelling of 15484021128 in words is "fifteen billion, four hundred eighty-four million, twenty-one thousand, one hundred twenty-eight".