2187153450554 has 4 divisors (see below), whose sum is σ = 3280730175834. Its totient is φ = 1093576725276.

The previous prime is 2187153450527. The next prime is 2187153450637. The reversal of 2187153450554 is 4550543517812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1398724886329 + 788428564225 = 1182677^2 + 887935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546788362637 + ... + 546788362640.

Almost surely, 2^{2187153450554} is an apocalyptic number.

2187153450554 is a deficient number, since it is larger than the sum of its proper divisors (1093576725280).

2187153450554 is a wasteful number, since it uses less digits than its factorization.

2187153450554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093576725279.

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 2187153450554 in words is "two trillion, one hundred eighty-seven billion, one hundred fifty-three million, four hundred fifty thousand, five hundred fifty-four".