54664778061488 has 40 divisors (see below), whose sum is σ = 121075863306528. Its totient is φ = 23421485993472.

The previous prime is 54664778061473. The next prime is 54664778061527. The reversal of 54664778061488 is 88416087746645.

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, 64955381 + ... + 65791572.

Almost surely, 2^{54664778061488} is an apocalyptic number.

It is an amenable number.

54664778061488 is an abundant number, since it is smaller than the sum of its proper divisors (66411085245040).

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

54664778061488 is a wasteful number, since it uses less digits than its factorization.

54664778061488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130750701 (or 130750695 counting only the distinct ones).

The product of its (nonzero) digits is 1734082560, while the sum is 74.

The spelling of 54664778061488 in words is "fifty-four trillion, six hundred sixty-four billion, seven hundred seventy-eight million, sixty-one thousand, four hundred eighty-eight".