1642796714820 has 96 divisors (see below), whose sum is σ = 4764245713920. Its totient is φ = 422457387520.

The previous prime is 1642796714729. The next prime is 1642796714827. The reversal of 1642796714820 is 284176972461.

It is not an unprimeable number, because it can be changed into a prime (1642796714827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 853549 + ... + 2003531.

It is an arithmetic number, because the mean of its divisors is an integer number (49627559520).

Almost surely, 2^{1642796714820} is an apocalyptic number.

1642796714820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642796714820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382122856960).

1642796714820 is an abundant number, since it is smaller than the sum of its proper divisors (3121448999100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642796714820 is a wasteful number, since it uses less digits than its factorization.

1642796714820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150845 (or 1150843 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 1642796714820 in words is "one trillion, six hundred forty-two billion, seven hundred ninety-six million, seven hundred fourteen thousand, eight hundred twenty".