1137778806 has 8 divisors (see below), whose sum is σ = 2275557624. Its totient is φ = 379259600.

The previous prime is 1137778757. The next prime is 1137778813. The reversal of 1137778806 is 6088777311.

It is a sphenic number, since it is the product of 3 distinct primes.

1137778806 is an admirable number.

It is a super-2 number, since 2×1137778806² = 2589081222765571272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94814895 + ... + 94814906.

It is an arithmetic number, because the mean of its divisors is an integer number (284444703).

Almost surely, 2^1137778806 is an apocalyptic number.

1137778806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1137778806 is a wasteful number, since it uses less digits than its factorization.

1137778806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189629806.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 1137778806 is about 33730.9769499788. The cubic root of 1137778806 is about 1043.9650187924.

The spelling of 1137778806 in words is "one billion, one hundred thirty-seven million, seven hundred seventy-eight thousand, eight hundred six".