27773155157 has 8 divisors (see below), whose sum is σ = 30321363072. Its totient is φ = 25228843200.

The previous prime is 27773155121. The next prime is 27773155177. The reversal of 27773155157 is 75155137772.

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

It is not a de Polignac number, because 27773155157 - 2²⁰ = 27772106581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773155177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959069 + ... + 987602.

It is an arithmetic number, because the mean of its divisors is an integer number (3790170384).

Almost surely, 2^27773155157 is an apocalyptic number.

It is an amenable number.

27773155157 is a deficient number, since it is larger than the sum of its proper divisors (2548207915).

27773155157 is a wasteful number, since it uses less digits than its factorization.

27773155157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947979.

The product of its digits is 1800750, while the sum is 50.

The spelling of 27773155157 in words is "twenty-seven billion, seven hundred seventy-three million, one hundred fifty-five thousand, one hundred fifty-seven".