1956994279 has 2 divisors, whose sum is σ = 1956994280. Its totient is φ = 1956994278.

The previous prime is 1956994183. The next prime is 1956994283. The reversal of 1956994279 is 9724996591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1956994279 - 2¹¹ = 1956992231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1956994679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978497139 + 978497140.

It is an arithmetic number, because the mean of its divisors is an integer number (978497140).

Almost surely, 2^1956994279 is an apocalyptic number.

1956994279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956994279 is an equidigital number, since it uses as much as digits as its factorization.

1956994279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11022480, while the sum is 61.

The square root of 1956994279 is about 44237.9280595283. The cubic root of 1956994279 is about 1250.8249016967.

The spelling of 1956994279 in words is "one billion, nine hundred fifty-six million, nine hundred ninety-four thousand, two hundred seventy-nine".