1992276464640 has 528 divisors, whose sum is σ = 8086425960384. Its totient is φ = 413977804800.

The previous prime is 1992276464609. The next prime is 1992276464681. The reversal of 1992276464640 is 464646722991.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8158720 + ... + 8399360.

Almost surely, 2^{1992276464640} is an apocalyptic number.

1992276464640 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 1992276464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4043212980192).

1992276464640 is an abundant number, since it is smaller than the sum of its proper divisors (6094149495744).

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

1992276464640 is a wasteful number, since it uses less digits than its factorization.

1992276464640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240694 (or 240669 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 60.

The spelling of 1992276464640 in words is "one trillion, nine hundred ninety-two billion, two hundred seventy-six million, four hundred sixty-four thousand, six hundred forty".