1919435955 has 32 divisors (see below), whose sum is σ = 3247084800. Its totient is φ = 965515392.

The previous prime is 1919435953. The next prime is 1919435981. The reversal of 1919435955 is 5595349191.

It is not a de Polignac number, because 1919435955 - 2¹ = 1919435953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1919435898 and 1919435907.

It is not an unprimeable number, because it can be changed into a prime (1919435953) 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, 49861 + ... + 79529.

It is an arithmetic number, because the mean of its divisors is an integer number (101471400).

Almost surely, 2^1919435955 is an apocalyptic number.

1919435955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1919435955 is a deficient number, since it is larger than the sum of its proper divisors (1327648845).

1919435955 is a wasteful number, since it uses less digits than its factorization.

1919435955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29923.

The product of its digits is 1093500, while the sum is 51.

The square root of 1919435955 is about 43811.3678741032. The cubic root of 1919435955 is about 1242.7712808113.

The spelling of 1919435955 in words is "one billion, nine hundred nineteen million, four hundred thirty-five thousand, nine hundred fifty-five".