1980914931401 has 4 divisors (see below), whose sum is σ = 2263902778752. Its totient is φ = 1697927084052.

The previous prime is 1980914931397. The next prime is 1980914931421. The reversal of 1980914931401 is 1041394190891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1980914931401 - 2² = 1980914931397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1980914931401.

It is not an unprimeable number, because it can be changed into a prime (1980914931421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141493923665 + ... + 141493923678.

It is an arithmetic number, because the mean of its divisors is an integer number (565975694688).

Almost surely, 2^{1980914931401} is an apocalyptic number.

It is an amenable number.

1980914931401 is a deficient number, since it is larger than the sum of its proper divisors (282987847351).

1980914931401 is an equidigital number, since it uses as much as digits as its factorization.

1980914931401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282987847350.

The product of its (nonzero) digits is 279936, while the sum is 50.

The spelling of 1980914931401 in words is "one trillion, nine hundred eighty billion, nine hundred fourteen million, nine hundred thirty-one thousand, four hundred one".