1955867794 has 16 divisors (see below), whose sum is σ = 2954962296. Its totient is φ = 970905600.

The previous prime is 1955867789. The next prime is 1955867839. The reversal of 1955867794 is 4977685591.

It can be written as a sum of positive squares in 4 ways, for example, as 1771315569 + 184552225 = 42087^2 + 13585^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156414 + ... + 168454.

Almost surely, 2^1955867794 is an apocalyptic number.

1955867794 is a deficient number, since it is larger than the sum of its proper divisors (999094502).

1955867794 is a wasteful number, since it uses less digits than its factorization.

1955867794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12621.

The product of its digits is 19051200, while the sum is 61.

The square root of 1955867794 is about 44225.1941092405. The cubic root of 1955867794 is about 1250.5848556990.

The spelling of 1955867794 in words is "one billion, nine hundred fifty-five million, eight hundred sixty-seven thousand, seven hundred ninety-four".