15538484648 has 32 divisors (see below), whose sum is σ = 29245224960. Its totient is φ = 7739808960.

The previous prime is 15538484629. The next prime is 15538484651. The reversal of 15538484648 is 84648483551.

It is a super-2 number, since 2×15538484648² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15538484593 and 15538484602.

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, 3125861 + ... + 3130827.

It is an arithmetic number, because the mean of its divisors is an integer number (913913280).

Almost surely, 2^15538484648 is an apocalyptic number.

It is an amenable number.

15538484648 is a deficient number, since it is larger than the sum of its proper divisors (13706740312).

15538484648 is a wasteful number, since it uses less digits than its factorization.

15538484648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377 (or 6373 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 56.

The spelling of 15538484648 in words is "fifteen billion, five hundred thirty-eight million, four hundred eighty-four thousand, six hundred forty-eight".