54662021905638 has 48 divisors (see below), whose sum is σ = 127178765079984. Its totient is φ = 15616996254720.

The previous prime is 54662021905591. The next prime is 54662021905643. The reversal of 54662021905638 is 83650912026645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2054958 + ... + 10655838.

It is an arithmetic number, because the mean of its divisors is an integer number (2649557605833).

Almost surely, 2^{54662021905638} is an apocalyptic number.

54662021905638 is an abundant number, since it is smaller than the sum of its proper divisors (72516743174346).

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

54662021905638 is a wasteful number, since it uses less digits than its factorization.

54662021905638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622517 (or 8622510 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 54662021905638 in words is "fifty-four trillion, six hundred sixty-two billion, twenty-one million, nine hundred five thousand, six hundred thirty-eight".