27700133748 has 72 divisors (see below), whose sum is σ = 75564216000. Its totient is φ = 7874520192.

The previous prime is 27700133729. The next prime is 27700133809. The reversal of 27700133748 is 84733100772.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1353 + ... + 235376.

It is an arithmetic number, because the mean of its divisors is an integer number (1049503000).

Almost surely, 2^27700133748 is an apocalyptic number.

27700133748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27700133748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37782108000).

27700133748 is an abundant number, since it is smaller than the sum of its proper divisors (47864082252).

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

27700133748 is a wasteful number, since it uses less digits than its factorization.

27700133748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236949 (or 236940 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 27700133748 in words is "twenty-seven billion, seven hundred million, one hundred thirty-three thousand, seven hundred forty-eight".