2520786466 has 12 divisors (see below), whose sum is σ = 4156173126. Its totient is φ = 1145811920.

The previous prime is 2520786413. The next prime is 2520786467. The reversal of 2520786466 is 6646870252.

It can be written as a sum of positive squares in only one way, i.e., 2078904025 + 441882441 = 45595^2 + 21021^2 .

It is not an unprimeable number, because it can be changed into a prime (2520786467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5207995 + ... + 5208478.

Almost surely, 2^2520786466 is an apocalyptic number.

2520786466 is a deficient number, since it is larger than the sum of its proper divisors (1635386660).

2520786466 is a wasteful number, since it uses less digits than its factorization.

2520786466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10416497 (or 10416486 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 2520786466 is about 50207.4343698222. The cubic root of 2520786466 is about 1360.9599742627.

It can be divided in two parts, 2520786 and 466, that added together give a palindrome (2521252).

The spelling of 2520786466 in words is "two billion, five hundred twenty million, seven hundred eighty-six thousand, four hundred sixty-six".