9826972341551 has 4 divisors (see below), whose sum is σ = 9826983270000. Its totient is φ = 9826961413104.

The previous prime is 9826972341547. The next prime is 9826972341559. The reversal of 9826972341551 is 1551432796289.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9826972341551 - 2² = 9826972341547 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 (9826972341559) 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, 3981251 + ... + 5958548.

It is an arithmetic number, because the mean of its divisors is an integer number (2456745817500).

Almost surely, 2^{9826972341551} is an apocalyptic number.

9826972341551 is a deficient number, since it is larger than the sum of its proper divisors (10928449).

9826972341551 is an equidigital number, since it uses as much as digits as its factorization.

9826972341551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928448.

The product of its digits is 32659200, while the sum is 62.

The spelling of 9826972341551 in words is "nine trillion, eight hundred twenty-six billion, nine hundred seventy-two million, three hundred forty-one thousand, five hundred fifty-one".