9934137648 has 40 divisors (see below), whose sum is σ = 28514655600. Its totient is φ = 3311379072.

The previous prime is 9934137617. The next prime is 9934137671. The reversal of 9934137648 is 8467314399.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 9934137594 and 9934137603.

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, 11497413 + ... + 11498276.

It is an arithmetic number, because the mean of its divisors is an integer number (712866390).

Almost surely, 2^9934137648 is an apocalyptic number.

It is an amenable number.

9934137648 is an abundant number, since it is smaller than the sum of its proper divisors (18580517952).

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

9934137648 is a wasteful number, since it uses less digits than its factorization.

9934137648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22995706 (or 22995694 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 9934137648 is about 99670.1442158082. The cubic root of 9934137648 is about 2149.6943966570.

The spelling of 9934137648 in words is "nine billion, nine hundred thirty-four million, one hundred thirty-seven thousand, six hundred forty-eight".