54386808435640 has 32 divisors (see below), whose sum is σ = 122381138698560. Its totient is φ = 21752799868800.

The previous prime is 54386808435593. The next prime is 54386808435649. The reversal of 54386808435640 is 4653480868345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54386808435649) 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, 59651451 + ... + 60556330.

It is an arithmetic number, because the mean of its divisors is an integer number (3824410584330).

Almost surely, 2^{54386808435640} is an apocalyptic number.

It is an amenable number.

54386808435640 is an abundant number, since it is smaller than the sum of its proper divisors (67994330262920).

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

54386808435640 is a wasteful number, since it uses less digits than its factorization.

54386808435640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120219103 (or 120219099 counting only the distinct ones).

The product of its (nonzero) digits is 265420800, while the sum is 64.

The spelling of 54386808435640 in words is "fifty-four trillion, three hundred eighty-six billion, eight hundred eight million, four hundred thirty-five thousand, six hundred forty".