547993221545 has 128 divisors (see below), whose sum is σ = 901844140032. Its totient is φ = 309140582400.

The previous prime is 547993221541. The next prime is 547993221551. The reversal of 547993221545 is 545122399745.

It is not a de Polignac number, because 547993221545 - 2² = 547993221541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (547993221541) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31845914 + ... + 31863116.

It is an arithmetic number, because the mean of its divisors is an integer number (7045657344).

Almost surely, 2^547993221545 is an apocalyptic number.

547993221545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

547993221545 is a deficient number, since it is larger than the sum of its proper divisors (353850918487).

547993221545 is a wasteful number, since it uses less digits than its factorization.

547993221545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431.

The product of its digits is 13608000, while the sum is 56.

The spelling of 547993221545 in words is "five hundred forty-seven billion, nine hundred ninety-three million, two hundred twenty-one thousand, five hundred forty-five".