1953988468 has 12 divisors (see below), whose sum is σ = 3420625572. Its totient is φ = 976666880.

The previous prime is 1953988459. The next prime is 1953988501. The reversal of 1953988468 is 8648893591.

It can be written as a sum of positive squares in 2 ways, for example, as 1197298404 + 756690064 = 34602^2 + 27508^2 .

It is a super-4 number, since 4×1953988468⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68155 + ... + 92482.

It is an arithmetic number, because the mean of its divisors is an integer number (285052131).

Almost surely, 2^1953988468 is an apocalyptic number.

It is an amenable number.

1953988468 is a deficient number, since it is larger than the sum of its proper divisors (1466637104).

1953988468 is a wasteful number, since it uses less digits than its factorization.

1953988468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163682 (or 163680 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 61.

The square root of 1953988468 is about 44203.9417699372. The cubic root of 1953988468 is about 1250.1841793677.

The spelling of 1953988468 in words is "one billion, nine hundred fifty-three million, nine hundred eighty-eight thousand, four hundred sixty-eight".