1773868806 has 12 divisors (see below), whose sum is σ = 3843382452. Its totient is φ = 591289596.

The previous prime is 1773868799. The next prime is 1773868841. The reversal of 1773868806 is 6088683771.

It is a super-2 number, since 2×1773868806² = 6293221081799731272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49274116 + ... + 49274151.

It is an arithmetic number, because the mean of its divisors is an integer number (320281871).

Almost surely, 2^1773868806 is an apocalyptic number.

1773868806 is an abundant number, since it is smaller than the sum of its proper divisors (2069513646).

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

1773868806 is a wasteful number, since it uses less digits than its factorization.

1773868806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98548275 (or 98548272 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 1773868806 is about 42117.3219234082. The cubic root of 1773868806 is about 1210.5251928605.

The spelling of 1773868806 in words is "one billion, seven hundred seventy-three million, eight hundred sixty-eight thousand, eight hundred six".