54477421887 has 32 divisors (see below), whose sum is σ = 85352085504. Its totient is φ = 30258489600.

The previous prime is 54477421837. The next prime is 54477421897. The reversal of 54477421887 is 78812477445.

It is not a de Polignac number, because 54477421887 - 2¹¹ = 54477419839 is a prime.

It is a super-3 number, since 3×54477421887³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54477421837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116593 + ... + 350069.

It is an arithmetic number, because the mean of its divisors is an integer number (2667252672).

Almost surely, 2^54477421887 is an apocalyptic number.

54477421887 is a deficient number, since it is larger than the sum of its proper divisors (30874663617).

54477421887 is a wasteful number, since it uses less digits than its factorization.

54477421887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233799.

The product of its digits is 14049280, while the sum is 57.

The spelling of 54477421887 in words is "fifty-four billion, four hundred seventy-seven million, four hundred twenty-one thousand, eight hundred eighty-seven".