1777664046 has 16 divisors (see below), whose sum is σ = 3556098000. Its totient is φ = 592426368.

The previous prime is 1777664039. The next prime is 1777664071. The reversal of 1777664046 is 6404667771.

It is a junction number, because it is equal to n+sod(n) for n = 1777663986 and 1777664004.

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, 480 + ... + 59628.

It is an arithmetic number, because the mean of its divisors is an integer number (222256125).

Almost surely, 2^1777664046 is an apocalyptic number.

1777664046 is an abundant number, since it is smaller than the sum of its proper divisors (1778433954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1777664046 is a wasteful number, since it uses less digits than its factorization.

1777664046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64163.

The product of its (nonzero) digits is 1185408, while the sum is 48.

The square root of 1777664046 is about 42162.3534210319. The cubic root of 1777664046 is about 1211.3878949594.

The spelling of 1777664046 in words is "one billion, seven hundred seventy-seven million, six hundred sixty-four thousand, forty-six".