1955942769 has 16 divisors (see below), whose sum is σ = 3012361920. Its totient is φ = 1115688960.

The previous prime is 1955942759. The next prime is 1955942789. The reversal of 1955942769 is 9672495591.

It is not a de Polignac number, because 1955942769 - 2²⁷ = 1821725041 is a prime.

It is a super-2 number, since 2×1955942769² = 7651424231206774722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1955942759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1742704 + ... + 1743825.

It is an arithmetic number, because the mean of its divisors is an integer number (188272620).

Almost surely, 2^1955942769 is an apocalyptic number.

It is an amenable number.

1955942769 is a deficient number, since it is larger than the sum of its proper divisors (1056419151).

1955942769 is a wasteful number, since it uses less digits than its factorization.

1955942769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486560.

The product of its digits is 6123600, while the sum is 57.

The square root of 1955942769 is about 44226.0417514387. The cubic root of 1955942769 is about 1250.6008352047.

The spelling of 1955942769 in words is "one billion, nine hundred fifty-five million, nine hundred forty-two thousand, seven hundred sixty-nine".