19371945880001 has 48 divisors (see below), whose sum is σ = 23063579582400. Its totient is φ = 16162468080000.

The previous prime is 19371945879991. The next prime is 19371945880033. The reversal of 19371945880001 is 10008854917391.

It is a happy number.

It is not a de Polignac number, because 19371945880001 - 2³⁸ = 19097067973057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19371945883001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222241775 + ... + 222328923.

It is an arithmetic number, because the mean of its divisors is an integer number (480491241300).

Almost surely, 2^{19371945880001} is an apocalyptic number.

19371945880001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19371945880001 is a deficient number, since it is larger than the sum of its proper divisors (3691633702399).

19371945880001 is a wasteful number, since it uses less digits than its factorization.

19371945880001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87998 (or 87987 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 19371945880001 in words is "nineteen trillion, three hundred seventy-one billion, nine hundred forty-five million, eight hundred eighty thousand, one".