6542148838636 has 24 divisors (see below), whose sum is σ = 11575506332096. Its totient is φ = 3234912145920.

The previous prime is 6542148838633. The next prime is 6542148838657. The reversal of 6542148838636 is 6368388412456.

It is a super-2 number, since 2×6542148838636² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6542148838633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5838255 + ... + 6868006.

Almost surely, 2^{6542148838636} is an apocalyptic number.

It is an amenable number.

6542148838636 is a deficient number, since it is larger than the sum of its proper divisors (5033357493460).

6542148838636 is a wasteful number, since it uses less digits than its factorization.

6542148838636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707689 (or 12707687 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 64.

The spelling of 6542148838636 in words is "six trillion, five hundred forty-two billion, one hundred forty-eight million, eight hundred thirty-eight thousand, six hundred thirty-six".