2747555472 has 80 divisors (see below), whose sum is σ = 7321317120. Its totient is φ = 887233536.

The previous prime is 2747555471. The next prime is 2747555491. The reversal of 2747555472 is 2745557472.

It is a happy number.

It is a super-2 number, since 2×2747555472² = 15098122143434285568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2747555471) 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, 421228 + ... + 427700.

It is an arithmetic number, because the mean of its divisors is an integer number (91516464).

Almost surely, 2^2747555472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2747555472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3660658560).

2747555472 is an abundant number, since it is smaller than the sum of its proper divisors (4573761648).

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

2747555472 is a wasteful number, since it uses less digits than its factorization.

2747555472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6754 counting only the distinct ones).

The product of its digits is 2744000, while the sum is 48.

The square root of 2747555472 is about 52417.1295665835. The cubic root of 2747555472 is about 1400.6044111336.

The spelling of 2747555472 in words is "two billion, seven hundred forty-seven million, five hundred fifty-five thousand, four hundred seventy-two".