1099780054 has 8 divisors (see below), whose sum is σ = 1649819808. Its totient is φ = 549840120.

The previous prime is 1099780043. The next prime is 1099780081. The reversal of 1099780054 is 4500879901.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16099 + ... + 49585.

It is an arithmetic number, because the mean of its divisors is an integer number (206227476).

Almost surely, 2^1099780054 is an apocalyptic number.

1099780054 is a deficient number, since it is larger than the sum of its proper divisors (550039754).

1099780054 is a wasteful number, since it uses less digits than its factorization.

1099780054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49910.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 1099780054 is about 33162.9319270779. The cubic root of 1099780054 is about 1032.2113090877.

The spelling of 1099780054 in words is "one billion, ninety-nine million, seven hundred eighty thousand, fifty-four".