6891292901 has 4 divisors (see below), whose sum is σ = 7113592704. Its totient is φ = 6668993100.

The previous prime is 6891292879. The next prime is 6891292921. The reversal of 6891292901 is 1092921986.

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 a de Polignac number, because none of the positive numbers 2^k-6891292901 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 (6891292921) 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, 111149855 + ... + 111149916.

It is an arithmetic number, because the mean of its divisors is an integer number (1778398176).

Almost surely, 2^6891292901 is an apocalyptic number.

It is an amenable number.

6891292901 is a deficient number, since it is larger than the sum of its proper divisors (222299803).

6891292901 is a wasteful number, since it uses less digits than its factorization.

6891292901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222299802.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 6891292901 is about 83013.8115074835. The cubic root of 6891292901 is about 1902.9771333032.

The spelling of 6891292901 in words is "six billion, eight hundred ninety-one million, two hundred ninety-two thousand, nine hundred one".