2052780669 has 12 divisors (see below), whose sum is σ = 2965537536. Its totient is φ = 1368331272.

The previous prime is 2052780623. The next prime is 2052780671. The reversal of 2052780669 is 9660872502.

It is not a de Polignac number, because 2052780669 - 2¹⁷ = 2052649597 is a prime.

It is a super-2 number, since 2×2052780669² = 8427816950040175122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052780269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91044 + ... + 111330.

It is an arithmetic number, because the mean of its divisors is an integer number (247128128).

Almost surely, 2^2052780669 is an apocalyptic number.

It is an amenable number.

2052780669 is a deficient number, since it is larger than the sum of its proper divisors (912756867).

2052780669 is a wasteful number, since it uses less digits than its factorization.

2052780669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31536 (or 31533 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2052780669 is about 45307.6226368147. The cubic root of 2052780669 is about 1270.9082037805.

The spelling of 2052780669 in words is "two billion, fifty-two million, seven hundred eighty thousand, six hundred sixty-nine".