1054487521678 has 4 divisors (see below), whose sum is σ = 1581731282520. Its totient is φ = 527243760838.

The previous prime is 1054487521649. The next prime is 1054487521729. The reversal of 1054487521678 is 8761257844501.

1054487521678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1054487521678² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 263621880418 + ... + 263621880421.

It is an arithmetic number, because the mean of its divisors is an integer number (395432820630).

Almost surely, 2^{1054487521678} is an apocalyptic number.

1054487521678 is a deficient number, since it is larger than the sum of its proper divisors (527243760842).

1054487521678 is an equidigital number, since it uses as much as digits as its factorization.

1054487521678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527243760841.

The product of its (nonzero) digits is 15052800, while the sum is 58.

The spelling of 1054487521678 in words is "one trillion, fifty-four billion, four hundred eighty-seven million, five hundred twenty-one thousand, six hundred seventy-eight".