1953109078 has 16 divisors (see below), whose sum is σ = 3060787680. Its totient is φ = 932950656.

The previous prime is 1953109069. The next prime is 1953109079. The reversal of 1953109078 is 8709013591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953109079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12526 + ... + 63742.

It is an arithmetic number, because the mean of its divisors is an integer number (191299230).

Almost surely, 2^1953109078 is an apocalyptic number.

1953109078 is a deficient number, since it is larger than the sum of its proper divisors (1107678602).

1953109078 is a wasteful number, since it uses less digits than its factorization.

1953109078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52071.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 1953109078 is about 44193.9936869254. The cubic root of 1953109078 is about 1249.9966032974.

The spelling of 1953109078 in words is "one billion, nine hundred fifty-three million, one hundred nine thousand, seventy-eight".