3813996651 has 8 divisors (see below), whose sum is σ = 5095091664. Its totient is φ = 2537783040.

The previous prime is 3813996647. The next prime is 3813996691. The reversal of 3813996651 is 1566993183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3813996651 - 2² = 3813996647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3813996594 and 3813996603.

It is not an unprimeable number, because it can be changed into a prime (3813996691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218526 + ... + 1221651.

It is an arithmetic number, because the mean of its divisors is an integer number (636886458).

Almost surely, 2^3813996651 is an apocalyptic number.

3813996651 is a deficient number, since it is larger than the sum of its proper divisors (1281095013).

3813996651 is a wasteful number, since it uses less digits than its factorization.

3813996651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440701.

The product of its digits is 1049760, while the sum is 51.

The square root of 3813996651 is about 61757.5635124962. The cubic root of 3813996651 is about 1562.4043368931.

The spelling of 3813996651 in words is "three billion, eight hundred thirteen million, nine hundred ninety-six thousand, six hundred fifty-one".