6901966613 has 4 divisors (see below), whose sum is σ = 6904149120. Its totient is φ = 6899784108.

The previous prime is 6901966607. The next prime is 6901966649. The reversal of 6901966613 is 3166691096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6901966613 - 2¹² = 6901962517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6901960613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086503 + ... + 1092836.

It is an arithmetic number, because the mean of its divisors is an integer number (1726037280).

Almost surely, 2^6901966613 is an apocalyptic number.

It is an amenable number.

6901966613 is a deficient number, since it is larger than the sum of its proper divisors (2182507).

6901966613 is a wasteful number, since it uses less digits than its factorization.

6901966613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182506.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 6901966613 is about 83078.0754050068. The cubic root of 6901966613 is about 1903.9591141099.

The spelling of 6901966613 in words is "six billion, nine hundred one million, nine hundred sixty-six thousand, six hundred thirteen".