54405407986 has 8 divisors (see below), whose sum is σ = 81609204780. Its totient is φ = 27202339728.

The previous prime is 54405407911. The next prime is 54405407993. The reversal of 54405407986 is 68970450445.

It can be written as a sum of positive squares in 2 ways, for example, as 47635245025 + 6770162961 = 218255^2 + 82281^2 .

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

It is a super-2 number, since 2×54405407986² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80040 + ... + 339436.

Almost surely, 2^54405407986 is an apocalyptic number.

54405407986 is a deficient number, since it is larger than the sum of its proper divisors (27203796794).

54405407986 is a wasteful number, since it uses less digits than its factorization.

54405407986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364268.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 54405407986 in words is "fifty-four billion, four hundred five million, four hundred seven thousand, nine hundred eighty-six".