1054445381643 has 18 divisors (see below), whose sum is σ = 1429500080892. Its totient is φ = 691368451440.

The previous prime is 1054445381641. The next prime is 1054445381653. The reversal of 1054445381643 is 3461835444501.

1054445381643 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1054445381643 - 2¹ = 1054445381641 is a prime.

It is a super-2 number, since 2×1054445381643² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1054445381592 and 1054445381601.

It is not an unprimeable number, because it can be changed into a prime (1054445381641) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 108488338 + ... + 108498056.

Almost surely, 2^{1054445381643} is an apocalyptic number.

1054445381643 is a deficient number, since it is larger than the sum of its proper divisors (375054699249).

1054445381643 is an frugal number, since it uses more digits than its factorization.

1054445381643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19563 (or 9783 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 48.

Multiplying 1054445381643 by its sum of digits (48), we get a square (50613378318864 = 7114308²).

The spelling of 1054445381643 in words is "one trillion, fifty-four billion, four hundred forty-five million, three hundred eighty-one thousand, six hundred forty-three".