1946473647 has 32 divisors (see below), whose sum is σ = 2838882816. Its totient is φ = 1182720000.

The previous prime is 1946473603. The next prime is 1946473657. The reversal of 1946473647 is 7463746491.

It is not a de Polignac number, because 1946473647 - 2⁷ = 1946473519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1946473647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946473657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113647 + ... + 129647.

It is an arithmetic number, because the mean of its divisors is an integer number (88715088).

Almost surely, 2^1946473647 is an apocalyptic number.

1946473647 is a deficient number, since it is larger than the sum of its proper divisors (892409169).

1946473647 is a wasteful number, since it uses less digits than its factorization.

1946473647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16111.

The product of its digits is 3048192, while the sum is 51.

The square root of 1946473647 is about 44118.8581787879. The cubic root of 1946473647 is about 1248.5794308916.

The spelling of 1946473647 in words is "one billion, nine hundred forty-six million, four hundred seventy-three thousand, six hundred forty-seven".