2077828155 has 48 divisors (see below), whose sum is σ = 3968860896. Its totient is φ = 999129600.

The previous prime is 2077828153. The next prime is 2077828169. The reversal of 2077828155 is 5518287702.

It is not a de Polignac number, because 2077828155 - 2¹ = 2077828153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2077828155.

It is not an unprimeable number, because it can be changed into a prime (2077828153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16146 + ... + 66455.

It is an arithmetic number, because the mean of its divisors is an integer number (82684602).

Almost surely, 2^2077828155 is an apocalyptic number.

2077828155 is a deficient number, since it is larger than the sum of its proper divisors (1891032741).

2077828155 is a wasteful number, since it uses less digits than its factorization.

2077828155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82668 (or 82665 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 2077828155 is about 45583.2003593429. The cubic root of 2077828155 is about 1276.0564162630.

The spelling of 2077828155 in words is "two billion, seventy-seven million, eight hundred twenty-eight thousand, one hundred fifty-five".