992640752251 has 8 divisors (see below), whose sum is σ = 1015739215920. Its totient is φ = 969542915712.

The previous prime is 992640752209. The next prime is 992640752263. The reversal of 992640752251 is 152257046299.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 992640752251 - 2¹³ = 992640744059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (992640752291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4983591 + ... + 5178943.

It is an arithmetic number, because the mean of its divisors is an integer number (126967401990).

Almost surely, 2^992640752251 is an apocalyptic number.

992640752251 is a deficient number, since it is larger than the sum of its proper divisors (23098463669).

992640752251 is a wasteful number, since it uses less digits than its factorization.

992640752251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313565.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 992640752251 in words is "nine hundred ninety-two billion, six hundred forty million, seven hundred fifty-two thousand, two hundred fifty-one".