27161200902 has 16 divisors (see below), whose sum is σ = 59260802112. Its totient is φ = 8230666920.

The previous prime is 27161200889. The next prime is 27161200903. The reversal of 27161200902 is 20900216172.

It is a super-2 number, since 2×27161200902² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27161200902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27161200903) 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, 205766608 + ... + 205766739.

It is an arithmetic number, because the mean of its divisors is an integer number (3703800132).

Almost surely, 2^27161200902 is an apocalyptic number.

27161200902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27161200902 is an abundant number, since it is smaller than the sum of its proper divisors (32099601210).

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

27161200902 is a wasteful number, since it uses less digits than its factorization.

27161200902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411533363.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 27161200902 in words is "twenty-seven billion, one hundred sixty-one million, two hundred thousand, nine hundred two".