2012507651 has 16 divisors (see below), whose sum is σ = 2656696320. Its totient is φ = 1475940480.

The previous prime is 2012507593. The next prime is 2012507741. The reversal of 2012507651 is 1567052102.

It is not a de Polignac number, because 2012507651 - 2¹⁸ = 2012245507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012507251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767411 + ... + 770028.

It is an arithmetic number, because the mean of its divisors is an integer number (166043520).

Almost surely, 2^2012507651 is an apocalyptic number.

2012507651 is a deficient number, since it is larger than the sum of its proper divisors (644188669).

2012507651 is a wasteful number, since it uses less digits than its factorization.

2012507651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537474.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 2012507651 is about 44860.9813869469. The cubic root of 2012507651 is about 1262.5420358647.

Adding to 2012507651 its reverse (1567052102), we get a palindrome (3579559753).

The spelling of 2012507651 in words is "two billion, twelve million, five hundred seven thousand, six hundred fifty-one".