2065537782 has 48 divisors (see below), whose sum is σ = 5579638272. Its totient is φ = 536502960.

The previous prime is 2065537759. The next prime is 2065537801. The reversal of 2065537782 is 2877355602.

2065537782 is a `hidden beast` number, since 20 + 6 + 553 + 7 + 78 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 743758 + ... + 746529.

It is an arithmetic number, because the mean of its divisors is an integer number (116242464).

Almost surely, 2^2065537782 is an apocalyptic number.

2065537782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2065537782 is an abundant number, since it is smaller than the sum of its proper divisors (3514100490).

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

2065537782 is a wasteful number, since it uses less digits than its factorization.

2065537782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490313 (or 1490310 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 2065537782 is about 45448.1878846671. The cubic root of 2065537782 is about 1273.5354773661.

The spelling of 2065537782 in words is "two billion, sixty-five million, five hundred thirty-seven thousand, seven hundred eighty-two".