19740631411 has 2 divisors, whose sum is σ = 19740631412. Its totient is φ = 19740631410.

The previous prime is 19740631321. The next prime is 19740631459. The reversal of 19740631411 is 11413604791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19740631411 - 2¹³ = 19740623219 is a prime.

It is not a weakly prime, because it can be changed into another prime (19740631111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9870315705 + 9870315706.

It is an arithmetic number, because the mean of its divisors is an integer number (9870315706).

Almost surely, 2^19740631411 is an apocalyptic number.

19740631411 is a deficient number, since it is larger than the sum of its proper divisors (1).

19740631411 is an equidigital number, since it uses as much as digits as its factorization.

19740631411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 19740631411 in words is "nineteen billion, seven hundred forty million, six hundred thirty-one thousand, four hundred eleven".