1099545149438 has 16 divisors (see below), whose sum is σ = 1665721325664. Its totient is φ = 544305189600.

The previous prime is 1099545149407. The next prime is 1099545149467. The reversal of 1099545149438 is 8349415459901.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4990031 + ... + 5205717.

It is an arithmetic number, because the mean of its divisors is an integer number (104107582854).

Almost surely, 2^{1099545149438} is an apocalyptic number.

1099545149438 is a deficient number, since it is larger than the sum of its proper divisors (566176176226).

1099545149438 is a wasteful number, since it uses less digits than its factorization.

1099545149438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241027.

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 1099545149438 in words is "one trillion, ninety-nine billion, five hundred forty-five million, one hundred forty-nine thousand, four hundred thirty-eight".