1928014972787 has 2 divisors, whose sum is σ = 1928014972788. Its totient is φ = 1928014972786.

The previous prime is 1928014972777. The next prime is 1928014972853. The reversal of 1928014972787 is 7872794108291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1928014972787 - 2⁴ = 1928014972771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1928014972717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964007486393 + 964007486394.

It is an arithmetic number, because the mean of its divisors is an integer number (964007486394).

Almost surely, 2^{1928014972787} is an apocalyptic number.

1928014972787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928014972787 is an equidigital number, since it uses as much as digits as its factorization.

1928014972787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28449792, while the sum is 65.

The spelling of 1928014972787 in words is "one trillion, nine hundred twenty-eight billion, fourteen million, nine hundred seventy-two thousand, seven hundred eighty-seven".