1956945207 has 16 divisors (see below), whose sum is σ = 3062607872. Its totient is φ = 1088030880.

The previous prime is 1956945139. The next prime is 1956945227. The reversal of 1956945207 is 7025496591.

It is not a de Polignac number, because 1956945207 - 2⁷ = 1956945079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956945227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258519 + ... + 1260072.

It is an arithmetic number, because the mean of its divisors is an integer number (191412992).

Almost surely, 2^1956945207 is an apocalyptic number.

1956945207 is a deficient number, since it is larger than the sum of its proper divisors (1105662665).

1956945207 is a wasteful number, since it uses less digits than its factorization.

1956945207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518638.

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 1956945207 is about 44237.3734188638. The cubic root of 1956945207 is about 1250.8144467193.

The spelling of 1956945207 in words is "one billion, nine hundred fifty-six million, nine hundred forty-five thousand, two hundred seven".