2155484028826 has 8 divisors (see below), whose sum is σ = 3233265449760. Its totient is φ = 1077728878908.

The previous prime is 2155484028809. The next prime is 2155484028829. The reversal of 2155484028826 is 6288204845512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2155484028826² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2155484028829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6361336 + ... + 6691603.

It is an arithmetic number, because the mean of its divisors is an integer number (404158181220).

Almost surely, 2^{2155484028826} is an apocalyptic number.

2155484028826 is a deficient number, since it is larger than the sum of its proper divisors (1077781420934).

2155484028826 is a wasteful number, since it uses less digits than its factorization.

2155484028826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135508.

The product of its (nonzero) digits is 9830400, while the sum is 55.

The spelling of 2155484028826 in words is "two trillion, one hundred fifty-five billion, four hundred eighty-four million, twenty-eight thousand, eight hundred twenty-six".