2069725864 has 8 divisors (see below), whose sum is σ = 3880736010. Its totient is φ = 1034862928.

The previous prime is 2069725813. The next prime is 2069725871. The reversal of 2069725864 is 4685279602.

It can be written as a sum of positive squares in only one way, i.e., 1311164100 + 758561764 = 36210^2 + 27542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2069725864² = 8567530304221092992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129357859 + ... + 129357874.

Almost surely, 2^2069725864 is an apocalyptic number.

It is an amenable number.

2069725864 is a deficient number, since it is larger than the sum of its proper divisors (1811010146).

2069725864 is a wasteful number, since it uses less digits than its factorization.

2069725864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258715739 (or 258715735 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 2069725864 is about 45494.2398991345. The cubic root of 2069725864 is about 1274.3956359589.

The spelling of 2069725864 in words is "two billion, sixty-nine million, seven hundred twenty-five thousand, eight hundred sixty-four".