27623798155 has 16 divisors (see below), whose sum is σ = 33378718464. Its totient is φ = 21945850720.

The previous prime is 27623798141. The next prime is 27623798159. The reversal of 27623798155 is 55189732672.

It is not a de Polignac number, because 27623798155 - 2¹⁵ = 27623765387 is a prime.

It is a super-3 number, since 3×27623798155³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27623798096 and 27623798105.

It is not an unprimeable number, because it can be changed into a prime (27623798159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 895824 + ... + 926146.

It is an arithmetic number, because the mean of its divisors is an integer number (2086169904).

Almost surely, 2^27623798155 is an apocalyptic number.

27623798155 is a deficient number, since it is larger than the sum of its proper divisors (5754920309).

27623798155 is a wasteful number, since it uses less digits than its factorization.

27623798155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31586.

The product of its digits is 6350400, while the sum is 55.

The spelling of 27623798155 in words is "twenty-seven billion, six hundred twenty-three million, seven hundred ninety-eight thousand, one hundred fifty-five".