54421579787 has 8 divisors (see below), whose sum is σ = 57303452160. Its totient is φ = 51541465320.

The previous prime is 54421579781. The next prime is 54421579799. The reversal of 54421579787 is 78797512445.

It is a happy number.

54421579787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54421579787 - 2²² = 54417385483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54421579781) 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, 375683 + ... + 499980.

It is an arithmetic number, because the mean of its divisors is an integer number (7162931520).

Almost surely, 2^54421579787 is an apocalyptic number.

54421579787 is a deficient number, since it is larger than the sum of its proper divisors (2881872373).

54421579787 is a wasteful number, since it uses less digits than its factorization.

54421579787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878953.

The product of its digits is 19756800, while the sum is 59.

The spelling of 54421579787 in words is "fifty-four billion, four hundred twenty-one million, five hundred seventy-nine thousand, seven hundred eighty-seven".