19976612040000 has 5880 divisors, whose sum is σ = 99662158100736. Its totient is φ = 3919104000000.

The previous prime is 19976612039941. The next prime is 19976612040017. The reversal of 19976612040000 is 4021667991.

It is a tau number, because it is divible by the number of its divisors (5880).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 839 ways as a sum of consecutive naturals, for example, 487234439980 + ... + 487234440020.

Almost surely, 2^{19976612040000} is an apocalyptic number.

19976612040000 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 19976612040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49831079050368).

19976612040000 is an abundant number, since it is smaller than the sum of its proper divisors (79685546060736).

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

19976612040000 is an equidigital number, since it uses as much as digits as its factorization.

19976612040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19976612040000 in words is "nineteen trillion, nine hundred seventy-six billion, six hundred twelve million, forty thousand".