4156473020049 has 315 divisors, whose sum is σ = 7715026651353. Its totient is φ = 2237952656016.

The previous prime is 4156473020047. The next prime is 4156473020057. The reversal of 4156473020049 is 9400203746514.

The square root of 4156473020049 is 2038743.

It is a perfect power (a square), and thus also a powerful number.

4156473020049 is a `hidden beast` number, since 4 + 156 + 473 + 0 + 20 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 4156473020049 - 2¹ = 4156473020047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4156473019986 and 4156473020013.

It is not an unprimeable number, because it can be changed into a prime (4156473020047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 314 ways as a sum of consecutive naturals, for example, 62036910714 + ... + 62036910780.

Almost surely, 2^{4156473020049} is an apocalyptic number.

4156473020049 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4156473020049 is the 2038743-rd square number.

4156473020049 is the 1019372-nd centered octagonal number.

It is an amenable number.

4156473020049 is a deficient number, since it is larger than the sum of its proper divisors (3558553631304).

4156473020049 is an frugal number, since it uses more digits than its factorization.

4156473020049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 4156473020049 in words is "four trillion, one hundred fifty-six billion, four hundred seventy-three million, twenty thousand, forty-nine".