1019932912387 has 2 divisors, whose sum is σ = 1019932912388. Its totient is φ = 1019932912386.

The previous prime is 1019932912357. The next prime is 1019932912409. The reversal of 1019932912387 is 7832192399101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1019932912387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1019932912337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509966456193 + 509966456194.

It is an arithmetic number, because the mean of its divisors is an integer number (509966456194).

Almost surely, 2^{1019932912387} is an apocalyptic number.

1019932912387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019932912387 is an equidigital number, since it uses as much as digits as its factorization.

1019932912387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 1019932912387 in words is "one trillion, nineteen billion, nine hundred thirty-two million, nine hundred twelve thousand, three hundred eighty-seven".