2728621552902 has 32 divisors (see below), whose sum is σ = 6261117184512. Its totient is φ = 776572667904.

The previous prime is 2728621552871. The next prime is 2728621552997. The reversal of 2728621552902 is 2092551268272.

It is a happy number.

It is a super-2 number, since 2×2728621552902² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126384498 + ... + 126406085.

It is an arithmetic number, because the mean of its divisors is an integer number (195659912016).

Almost surely, 2^{2728621552902} is an apocalyptic number.

2728621552902 is an abundant number, since it is smaller than the sum of its proper divisors (3532495631610).

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

2728621552902 is a wasteful number, since it uses less digits than its factorization.

2728621552902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252790852.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 2728621552902 in words is "two trillion, seven hundred twenty-eight billion, six hundred twenty-one million, five hundred fifty-two thousand, nine hundred two".