1840772867 has 2 divisors, whose sum is σ = 1840772868. Its totient is φ = 1840772866.

The previous prime is 1840772863. The next prime is 1840772873. The reversal of 1840772867 is 7682770481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1840772867 - 2² = 1840772863 is a prime.

It is not a weakly prime, because it can be changed into another prime (1840772861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920386433 + 920386434.

It is an arithmetic number, because the mean of its divisors is an integer number (920386434).

Almost surely, 2^1840772867 is an apocalyptic number.

1840772867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1840772867 is an equidigital number, since it uses as much as digits as its factorization.

1840772867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 1840772867 is about 42904.2290106698. The cubic root of 1840772867 is about 1225.5566798218.

The spelling of 1840772867 in words is "one billion, eight hundred forty million, seven hundred seventy-two thousand, eight hundred sixty-seven".