1780052971 has 2 divisors, whose sum is σ = 1780052972. Its totient is φ = 1780052970.

The previous prime is 1780052941. The next prime is 1780053047. The reversal of 1780052971 is 1792500871.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1780052971 - 2⁹ = 1780052459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1780052941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890026485 + 890026486.

It is an arithmetic number, because the mean of its divisors is an integer number (890026486).

Almost surely, 2^1780052971 is an apocalyptic number.

1780052971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780052971 is an equidigital number, since it uses as much as digits as its factorization.

1780052971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 1780052971 is about 42190.6739813433. The cubic root of 1780052971 is about 1211.9302958076.

The spelling of 1780052971 in words is "one billion, seven hundred eighty million, fifty-two thousand, nine hundred seventy-one".