6989137920001 has 4 divisors (see below), whose sum is σ = 6989397853104. Its totient is φ = 6988877986900.

The previous prime is 6989137919977. The next prime is 6989137920049. The reversal of 6989137920001 is 1000297319896.

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-6989137920001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6989137920301) 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, 129926215 + ... + 129979996.

It is an arithmetic number, because the mean of its divisors is an integer number (1747349463276).

Almost surely, 2^{6989137920001} is an apocalyptic number.

It is an amenable number.

6989137920001 is a deficient number, since it is larger than the sum of its proper divisors (259933103).

6989137920001 is a wasteful number, since it uses less digits than its factorization.

6989137920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259933102.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 6989137920001 in words is "six trillion, nine hundred eighty-nine billion, one hundred thirty-seven million, nine hundred twenty thousand, one".