27955155155972 has 36 divisors (see below), whose sum is σ = 53774112066108. Its totient is φ = 12706683264000.

The previous prime is 27955155155971. The next prime is 27955155155981.

27955155155972 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 14827243579456 + 13127911576516 = 3850616^2 + 3623246^2 .

It is not an unprimeable number, because it can be changed into a prime (27955155155971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31801268 + ... + 32668500.

Almost surely, 2^{27955155155972} is an apocalyptic number.

27955155155972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27955155155972 is a deficient number, since it is larger than the sum of its proper divisors (25818956910136).

27955155155972 is a wasteful number, since it uses less digits than its factorization.

27955155155972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933860 (or 933847 counting only the distinct ones).

The product of its digits is 248062500, while the sum is 68.

The spelling of 27955155155972 in words is "twenty-seven trillion, nine hundred fifty-five billion, one hundred fifty-five million, one hundred fifty-five thousand, nine hundred seventy-two".