1909053255454 has 4 divisors (see below), whose sum is σ = 2863579883184. Its totient is φ = 954526627726.

The previous prime is 1909053255409. The next prime is 1909053255497. The reversal of 1909053255454 is 4545523509091.

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

It is a super-2 number, since 2×1909053255454² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477263313862 + ... + 477263313865.

It is an arithmetic number, because the mean of its divisors is an integer number (715894970796).

Almost surely, 2^{1909053255454} is an apocalyptic number.

1909053255454 is a deficient number, since it is larger than the sum of its proper divisors (954526627730).

1909053255454 is an equidigital number, since it uses as much as digits as its factorization.

1909053255454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954526627729.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 1909053255454 in words is "one trillion, nine hundred nine billion, fifty-three million, two hundred fifty-five thousand, four hundred fifty-four".